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One relic they always leave behind is a sense of wonder.

"They left our planets long ago
The Elder Race still learn and grow
Their power grows with purpose strong
To claim the home where they belong."
Rush, "2112"

Precursors, a.k.a. "Ancients", "Elders" or "Old Ones", are a standard of Science Fiction (especially Space Opera), fantasy and occasionally Horror: an ancient race whose culture and knowledge rose to its pinnacle in ages long past but which is no longer present.

In Science Fiction, they may have visited Earth and/or other worlds but they would remain a mystery. They are considered the first species to have technology, making them godlike. In fantasy, they will usually be the forerunners created by gods/God, mighty in deeds and magic. At the height of their civilisation, Precursors might have created intelligent species or reworked entire worlds with a snap of a finger. Any strange and persistent mystery in the story's 'verse is usually laid at their feet.

Predecessors now leave behind nothing but tantalizing ruins and rare, sometimes incomprehensible artifacts and dangerous weapons. Just why, no one knows. Perhaps they Ascended to a Higher Plane of Existence, succumbed to decadence or were wiped out by a disaster or war, or maybe they just relocated en masse to somewhere else where they haven't been found yet.


Whatever the reason, they set the stage for the modern world, left behind a few MacGuffins and surprises for the heroes and villains to find, and then conveniently got out of the way. And then there are the times where they themselves are the reason everything's gone to hell, and they intend to keep it that way. If the Precursors implemented a plan that, whether they still exist or not, still influences outcomes, then they are also Powers That Be.

Sometimes the Precursors can be rediscovered; this is often regarded as a bad move, especially by the Precursors themselves. This also applies to the audience: the romance of Precursors can be easily shattered by giving too much away.

It may also happen that Earth humans are Precursors and their human or otherwise descendants try to rediscover their heritage. If humans are the Precursors, that's also Advanced Ancient Humans. If everyone's scared of them, that's Humans Are Cthulhu. If they pick on their descendants, that's Abusive Precursors; if they couldn't care less about anyone else, it's Neglectful Precursors; if they help their descendants, it's Benevolent Precursors. If there's one or more race that played Precursors to the Precursors, then they're Recursive Precursors. Any and all of these are susceptible to Awakening the Sleeping Giant. If they gave their tech or it's being used by another race, it's Low Culture, High Tech. Very often, their most powerful technology will appear deceptively primitive and/or ceremonial. If everyone gets into an argument over their leftover toys, you have an Archaeological Arms Race on your hands.


Very commonly used to justify Rubber-Forehead Aliens: everyone was made from a common template by the Precursors, so they look pretty similar.

Compare/contrast with Sufficiently Advanced, Space Elves, The Fair Folk, Eldritch Abomination.

Not to be confused with the space flight sim, The Precursors.

And now, young one, behold the legacy of those who were here before you:

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    Anime and Manga 
  • In Heroic Age, the precursors (known as the "Golden Tribe") was the source of many wonders; giving birth to stars, discovering the Star Way which connects all stars, as well uplifting several races. In time they eventually undertook a journey out of their home galaxy and into a new one. The story is about how the lesser races cope with the "Golden Tribe's" absence.
  • In the Soul Hunter manga, five aliens, The First People, came to Earth millions of years ago after their home planet self-destructed. All but one merged with the earth and its life forms to spread their blood, leaving behind the first seven paopei (magical weapons used in the series) from which all others would be copied.
  • In Last Exile, this turned out to be the answer to all the mysteries (and there were plenty).
  • The Macross series has the Protoculture, who are apparently responsible for everything that happens in the Milky Way: humans, Zentradi, and a multitude of other species across the galaxy were all created and seeded by them, and the Birdman was made by them in an attempt to mimic the Vajra. Moreover, they "created" (it's a bit more complex than that) the Protodeviln, who pushed them to the brink of extinction before being defeated. About the only thing the Protoculture didn't have a hand in creating are the Vajra of Macross Frontier, and that's because the Vajra are even older. The Protoculture based some of their most advanced technology (such as Space Folding) after the Vajra's biological systems. The Vajra themselves seem to primarily take a "live and let live" attitude towards other intelligent species; the fact that they don't have a clear means of communication probably has a lot to do with this.
  • In Lyrical Nanoha, the lost civilization of Al Hazard/Alhazred, whose artifacts and technologies were considered Lost Logia even back in the era of Ancient Belka.
  • In The Mysterious Cities of Gold the Mu Empire and Atlantis developed highly advanced society and technology but were wiped out, along with (most of) their technology, by a nuclear war.
  • In Neon Genesis Evangelion, the First Ancestral Race (FAR) dropped Black and White Eggs (Adams and Liliths) on several planets. No planet was supposed to get more than one Egg, but because we got two, we got the inter-egg wars that compose the series proper (Lilith's children vs. Adam's children). The First Ancestral Race were never mentioned in the show itself, but is referred to in the early scripts and gets a bit more fleshed out in the Neon Genesis Evangelion 2 PlayStation 2 game that served as supplemental material.
  • In Outlaw Star, an ancient race is revealed to be responsible for the Galactic Leyline, yet another of the many Sequel Hooks in the last episode.
  • The Vision of Escaflowne — The people of Atlantis created fate-altering technology and the "zone of absolute fortune". They were responsible for the creation of the world of Gaea. In the end they were destroyed by the "zone", so it did not quite live up to its name.
  • The as-of-yet unnamed Ancient Kingdom in One Piece fits this bill. Dating back from the Void Century, they were incredibly powerful, but later fell to the alliance which later became the World Government. Nonetheless, they left their Phoneglyphs all over the world, chronicling the events of the Void Century, which has become Nico Robin's goal.
  • The Pillar Men from JoJo's Bizarre Adventure: Battle Tendency follow most of the criteria for this trope. They were a highly evolved humanoid species that lived in Mexico tens of thousands of years ago, created the Stone Masks, fed on humans, and all but four of them were wiped out when they disagreed with the direction that Kars wanted to take their people. The four survivors ended up sealed in stone pillars for thousands of years, until they were awakened by Those Wacky Nazis.

    Comic Books 
  • In the Marvel Universe, the race of giant Celestials have influenced many planets, including Earth. They wear strange suits of armor, giving the impression that they are mechanical, but that's not the case. They also test races and civilisations according to their standards to see who are worthy. In addition, there are also the Elders of the Universe, a loose associations of beings who all are The Last of Their Kind, and who hail from the first intelligent races to develop in the universe. They are less active, though, since they are all obsessed with one narrow hobby which apparently is the only thing that keeps them from dying of sheer boredom. The Grandmaster may be interested in the gaming and gambling habits of various lesser races, for instance, but couldn't care less about any aspects of their culture that has nothing to do with his obsession with games.
    • There is also the race know as the Watchers, who started to do something similar, but got cold feet when early interference with a much more primitive race led to horrible wars. They have sworn to not interfere with their nigh godlike powers, only record what happens. (The Watcher appointed to Earth is a juvenile delinquent who breaks this rule regularly, but surreptitiously, so as to not get in trouble with his kind.)
  • In the DC Universe, the Malthusians were one of the earliest sentient races in the universe. They went on to become the Guardians of the Universe. And the Controllers, and the Zamarons, and Krona. They run the gamut of precursor subtropes.
  • There's also the Old Gods, precursors of Jack Kirby's Fourth World beings. They are actually older than the DC Universe, and are said to have caused the destruction of the one before.
  • The Merk in Nexus are or were a race of extremely psychically gifted and technologically advanced aliens who left the galaxy and, apparently, their bodies, behind. One of them remained behind, however, and empowered the eponymous hero.
  • The High Ones of ElfQuest surely qualify (even though they have known descendants), because none of the protagonist elves know much about them, and their powers and origins are a great mystery when the series begins.
    • Elves, trolls and preservers come to be thought of this way by the humans of the medieval and futuristic eras.
  • It is hinted that Dr. Manhattan will go on to do this after the events of Watchmen somewhere else in the universe, or in another one of his own creation.
  • In Gold Digger, finding the various precursor civilizations is Gina's job. Of course, she usually ends up encountering the stuff left behind, and occasionally bringing it home.
  • Royals has a reveal that the Kree were created by a long-gone bunch called the Progenitors, much like how they created the Inhumans. These Progenitors are also the ones responsible for the mysterious Sky Spears. It eventually turns out they're full on Abusive Precursors. They enhance species, then come back and sample the innovations to make more Progenitors out of their test subjects. They gave up on the Kree thanks to their becoming an evolutionary dead-end, but when a handful of Inhumans stumbled upon one of their farm-moons and blew it up, that got their attention. And so they decide to come to Earth to farm the Inhumans.

    Fan Works 
  • Child of the Storm alludes to the Celestials as a matter of course, as well as making vaguer allusions to Atlantis before it sunk below the waves.
  • It is common in My Little Pony: Friendship Is Magic fanfiction to speculate about some sort of precursors. Generally, the long-gone precursors tend to be civilizations of dragons, alicorns, or humans.
    • The Great Alicorn Hunt: Daring Do figures that one of these is responsible for creating the Tree of Harmony, she just can't figure out who.
    • It's a Dangerous Business, Going Out Your Door: In ancient times, the deer were the world's dominant race, but all but destroyed themselves in a great war. While pockets survive, such as the denizens of the Shimmerwood, they can no longer rise to their former glory, nor do they wish to.
    • In the Pony POV Series, there are several:
      • The Centaur Empire, which was once the biggest and most advanced Empire in it's heyday and predated Ponykind as a sapient species. Sadly, Lord Tirek is the Sole Survivor of the Empire because he destroyed it, and he is most certainly an Abusive Precursor. The Empire as a whole may count as Benevolent Precursors to a degree, as they treated the then nonsapient Ponies fairly well.
      • The Age of Myths was this to the Age of Wonders. The Paradise Estate Ponies in particular count as Benevolent Precursors, as they actively defended Ponyland from any threats that may come up, including defeating Grogar every five hundred years if they couldn't keep him locked up.
      • The Age of Wonders was this to the current age being the My Little Pony Tales society, until it was destroyed by a Class 2 Apocalypse. To a degree qualifies as Benevolent Precursors, as some of them genuinely DID try to make the future brighter for the civilization to succeed them. Also count as Benevolent Precursors to the Lost Age, which they used their wish spell to create.
    • Twilight Then, Twilight Now Universe: The Penna were very technologically and magically advanced for their time and could also magically create living beings. Their fall came when they created the draconequi and it backfired on them when the draconequi turned against them. The Penna-Draconequus war destroyed the Penna civilisation, which left the ponies to rise in their place.
    • The Writing on the Wall features Adventurer Archaeologist Daring Do and a team of workers excavating an Ancient Tomb built with extremely advanced masonry, far in advance of even what ponies could do in the present — but the building has been dated back thousands of years before ponies first built buildings out of stone. Surrounded by metallic spikes to keep out intruders (which are, alas, easily circumvented by someone with wings) and with a room full of writing in dozens of long-lost languages, Daring Do naturally assumes that all of the rigmarole is meant to dissuade would be grave robbers. She's absolutely right. Too bad that the building isn't a tomb, but a nuclear waste storage facility built by humans, and the attempts at dissuading future people from breaking into the place was for their own good.
  • Hidden Frontier: The Gray are set up to be precursors of some kind, but it turns out they're actually artificial life forms built by actual precursors, of whom Siroc, the Big Bad, is the last one left.
  • In Shepard's R&R, when Commander Shepard asks Princess Celestia about the fantastical abilities of the Equestrians, Celestia smiles and cryptically states that "their Mother shaped them that way." When Shepard learns the fact that Equestrian DNA is shows almost-impossible levels of genetic engineering, Shepard concludes that this "Mother" must have been one.
  • Mega Man Recut has the Vannu'bi, an ancient civilization that existed on a small remote island and were apparently destroyed by a volcanic eruption. They may have been Abusive Precursors, since their architecture describes them as constantly warring with other civilizations and making deals with an Eldritch Abomination.
  • Harry Potter fanfiction:
  • RWBY Alternate explains the Schizo Tech of RWBY as being due to this. The world used to be very technologically advanced but an incident known as "the Fall" left everything all-but in ruins. Humanity has since picked itself up but it's not on the level of the Imperial Era. The only remnants of the old era is some of the advanced technology, such as holograms and robots, which have been mainly repurposed for military usage.
  • In Fallen Kingdom, the deceased Antonio and Emperor Morton's powers are said to far surpass Mario and Bowser's, and the First Koopa War sowed the seeds of Mario and Bowser's conflict.
  • Rerum Danarae: The Ancient Kingdom, of Danara Marina. The name is a reference to a quote from the Aeneid by Virgil, "Timeo Danaos et dona ferentes" ("I fear the Danaans [Greeks], even those bearing gifts"), and the kingdom's undisputed rule over the oceans at the height of power. Dating back from the Void Century, they were incredibly powerful, but due to a corrupt usurper, their nobility sold the kingdom out to the alliance which later became the World Government. They left their Poneglyphs, the letters to their descendants, all over the world, chronicling the events of the Void Century. The modern Navy is basically the only other thing what's left of it.
  • Steel Soul Saga: From Steel Spirit: As said in "Input Functionality": They were the Draconeuuqii, but only one is known, Discord.
    "Wait," Sweetie Belle interjected, "the precursors are real?"
    "Yes, as a matter of fact. You've even met one!" Cheerilee nodded out the door. "The Draconeuuqii were once quite widespread—"
    The school bell suddenly chimed
  • Pokédex: Before humans arose, Sceptile practiced agriculture, Conkeldurr built cities, and Cranidos trained Pokémon.
  • Pokémon: The Great Adventure: The Ancients, a civilization of very advanced humanoid aliens who migrated to this world three thousand years before the story and set the bases of the modern world. By the time of the story, everyone think they're gone. They introduced Aura to the world and Silver is one of them, just like Sir Aaron's mother.

  • One of the most widely known Precursor stories is 2001: A Space Odyssey, where they are also (presumably) Energy Beings who guided human evolution.
  • In AVP: Alien vs. Predator, the Predators are retconned to being responsible for teaching humans how to build, farm and write, all so they could have people to sacrifice as part of their barbaric rites of passage.
  • Contact. The alien says that the Portal Network used by the protagonist was not built by them, but by a long-disappeared race.
  • The Mondoshawans in The Fifth Element- based on their representation- apply to this trope as well, at least to a certain degree.
  • Alien has the barely-featured Space Jockey's species, which the Expanded Universe claims is responsible for the creation of both humanity and the Xenomorphs. Prometheus clears this up a bit: the "Engineers", as they are called, apparently seeded life on Earth in prehistoric times. Whether this was done by just one Engineer or a collective is not clarified; the characters think it was all of them. They also intervened in some ancient cultures, leaving clues in bas-relief and cave-painting form, pointing to a planet in a certain star system, about 34 LY from Earth. The movie makes it clear that about 2000 years ago, they changed their mind about us for some reason and decided to exterminate humanity; the planet in question was one of their outposts, from where ships carrying biological weapons (much like the Xenomorphs) were to be sent to cleanse the Earth of life. The only thing that saved us was the fact that the monsters escaped captivity and killed the Engineers at the outpost. All except one...
    • The implication is there that they did indeed create the Xenomorphs as the perfect biological nuke. Alien: Covenant debunks that implication by revealing the who and why of the Xenomorph's creation.
  • The Krell of Forbidden Planet, who created the huge machine powered by near limitless energy beneath the planet's surface. The machine was meant to read their conscious thoughts and create or manipulate everything they wished so that they could be free from dependence upon instrumentality. They were all killed in a single night by their own primitive subconscious thoughts which they'd unknowingly let loose with the machine's completion.
  • A.I.: Artificial Intelligence has a twist on this in its final act, in that humans have become extinct and are now viewed as an ancient and wise precursor race by the robots who have inherited the planet.

  • H. P. Lovecraft loved this trope and his works arguably served as an early Trope Codifier. See for example "The Call of Cthulhu", "The Shadow Out of Time" and At the Mountains of Madness. In At the Mountains of Madness the Elder Things colonized the Earth two billion years ago and sowed the seeds of all advanced life on the planet. The Mi-Go of "The Whisperer in Darkness" may precede the existence of the universe itself. Lovecraft usually concentrated more on the lore of his Precursors rather than their physical objects. In his work, the Precursors sometimes remain on Earth, hidden, in outer space, or in a space adjacent to our cosmos, ready to return at any time. The "Cthulhu Mythos" codified by his friend and admirer August Derleth builds on this. (Lovecraft himself did not use the term "Cthulhu mythos".)
  • Andy McDermott's action-adventure novels. The first is called The Hunt for Atlantis and is centered around, oddly enough, a hunt for Atlantis. As the series goes on, other mythical items are 'explained' as advanced technology stemming from the Atlanteans. As the series goes on even further, the characters stumble across the Garden of Eden, which is the final resting place of a pre-human civilisztion which was driven to extinction by their human slaves, who stole certain technologies and fled. The Atlanteans are then revealed to have been the result of cross-breeding between those prehumans and the humans, causing the reader to re-evaluate the "it came from Atlantis" explanation.
  • Isaac Asimov: The Asimov's Universe story collection is notable for featuring space-faring humans alongside five other non-humanoid races. A recurring motif is the ruins and remnants left behind of an earlier, seventh space-faring species that has since vanished.
  • Uplift: Every intelligent race in the galaxy was Uplifted (engineered to sentience and given access to the Great Library) by a previous one, save the first. The Progenitors (self-evolved, now extinct) are considered the next thing to gods. A race's clout in the galactic hierarchy is in part determined by how close they are to having been created directly by the Progenitors. Then along come the Humans, who have reached the stars alone, with no patron race and a complete fossil record that indicates they evolved naturally. It's practically heretical! It doesn't help matters (from the galactic standpoint) that humans have already Uplifted chimps and dolphins, too.

    In the second novel set in the Uplift Universe, Startide Rising, the first dolphin-captained Earth ship discovers what is assumed to be a fleet of the fabled Progenitors, and must try to return to Earth while being hounded by bickering alien battle fleets after the transmission of their findings is intercepted; the most active (and warlike) of the alien races/alliances are not happy that the wolfling Humans might have the key to the fate of the Progenitors (which could prove most or all of their belief systems wrong. The idea that humans may be the descendants or direct product of the Progenitors is also examined.
  • In C. J. Cherryh's Morgaine Cycle the Qhal left behind a Portal Network of Cool Gates, which they themselves copied from a still older alien species. The humans who discovered this, rather than copying it like the Qhal did, are systematically destroying the network left behind by the Qhal. That's because the Gates can be used for Time Travel, and any Temporal Paradox caused by the Gates will trigger a Time Crash which will destroy civilization on each planet with a Gate. Such a Time Crash is precisely what wiped out the Qhal, leaving behind their Gates for humans to discover.
  • Alan Dean Foster's Humanx Commonwealth series has humanity and its allies expanding into a significantly used universe, with a wide variety of species at various stages of development from primitive to superadvanced to completely extinct. Several of these, most notably the Xunca, the Tar-Aiym, and the Hur'rikku, had a profound impact on the earlier history of the galaxy and left numerous artifacts lying around after they variously departed. The Xunca are actually still around, but they packed up and moved to a different galaxy to avoid an encroaching Eldritch Abomination that the modern day protagonists now have to deal with.
  • In Larry Niven and Jerry Pournelle's novel Footfall, the aliens who invade Earth are actually at a caveman level of social development; the Forerunners left carved blocks on their planet which detail everything from simple metallurgy through advanced laser weapons and Bussard ramscoops. As a result, there are many technological paths they never even thought of.
  • In Larry Niven's Known Space universe, there are two sets of precursors. First there were the Thrintun (AKA "Slavers"), who seeded the galaxy with the ingredients of life so it would grow and evolve into unique delicacies for them to eat (being hypnotic slavers, they were defeated by the Tnuctipun in the inevitable Turned Against Their Masters, and they took all sentient life with them. Talk about bad parenting). Then there were the Pak, a race of more recent aliens with three life stages (child, breeder, Protector) only sentient in the third stage, and programmed to be homicidal to anything that could conceivably threaten their descendants (mutations were not recognized). Earth was a Lost Colony of them who couldn't advance to Protector stage when their supply of tree-of-life root ran out due to a lack of thallium in Earth's soil. They left behind lost colonies and random apelike animals all over, including the Ringworld, which they had built and abandoned.
  • Andre Norton
    • She wrote a lot of space opera novels featuring relics of various lost civilizations, collectively called "Forerunners". She was one of the early developers of the abandoned-gateway-between-worlds idea that the Stargate films and TV series are based on; one of her Forerunner cultures left behind such a network, which younger species, including humans, have started to explore.
    • In her Witch World fantasy novels, humans migrated to High Hallack centuries ago only to find that the Old Ones had been there before them; these Neglectful Precursors left behind quite a few ruins and dangerous artifacts.
  • Frederik Pohl's Heechee Saga set many of the standards for this trope. Humanity has stumbled on an space station abandoned by the local Precursors, the Heechee, and try to use the Faster-Than-Light Travel spacecraft left behind to search for alien artifacts to reverse-engineer. The destinations are pre-programmed and can only be accessed randomly, making exploration a dangerous crapshoot. Some of the survivors return rich; many return dead, if they return at all.
  • In the Carl Sagan novel Contact and the movie based on it, an unknown ancient race of aliens built the "cosmic subway system" of wormhole transportation used to bring a single human to meet the successor aliens who inherited the system.
  • In Charles Sheffield's Heritage Universe novels, the Builders left behind artifacts the size of planets — e.g. Cocoon, the first such artifact discovered by humans, was so named because that's what it looks like if you're far enough away from the planet it surrounds. A whole discipline of Adventurer Archaeologists exists to study Builder artifacts.
  • In the Strugatsky Brothers' Noon Universe series, the Wanderers may or may not be still active, but they fit this trope closely enough because the humans only ever find the traces of their continued and enigmatic work. They seem to be "progressing" the other civilisations, but their activities often enough utterly screw over local civilisations, though it might be for their ultimate good in some way anyway.
  • J. R. R. Tolkien's The Silmarillion, The Hobbit and The Lord of the Rings has several.
    • Some elven kingdoms are precursors to the people of Middle-Earth.
    • Númenor and Arnor. Even though Gondor still exists and so Númenórean civilization is not completely gone.However, it is much reduced, occupying only a small southern corner of Middle-earth. Its northern counterpart Arnor is almost entirely gone, existing only as the Shire and Bree.
    • From the perspective of the modern day, the Elves of Tolkien's Middle-Earth are a Precursor race. Humans did not descend from them, but they've been in the world longer than anyone and have really long-lasting artifacts. Gandalf, Thorin, and Bilbo's swords in The Hobbit are all artifacts from Gondolin, a city that was destroyed roughly 6,000 years before the events of the book. Not only are they unrusted and sharp, their orc proximity alert is still active.
    • Downplayed, since they never actually did anything until much later, but dwarves are technically the oldest mortal race in Arda, having been created by Mahal (the dwarven name for Aulë) and granted souls by Eru long before the elves or humans awakened.
    • And then there are the Woses, who are implied to be the original humans who built the first civilisations in middle earth.
  • In David R. Witanowski's Reynard Circle three major civilizations have come and gone by the time period of the novels. (Possibly more than three if the fan theory that the series is set long After the End is ever confirmed.)
    • The golden skinned Telchines, a matriarchal culture that coexisted with Giants. The castle of Maleperduys was built by them. Their rule came to an end rather abruptly due to...
    • ...the Demons, who enslaved the world in seven days. They created the Chimera, built functional robots, and would have ruled for an eternity were it not for their apparent inability to get along with each other. A civil war (implied to be nuclear) weakened them to the point that the last of them was slain by the founder of the Kingdom of...
    • Aquilia, a kingdom that eventually splintered into several dozen countries after the last member of the royal family drowned at sea a thousand years prior to the beginning of the saga. They built some truly impressive structures using the technology of the Demons, but seemingly forgot how to use it as the years went by (either that, or the technology stopped working and they had no idea how to fix it.) Duke Nobel claims to be a direct descendant of the royal family, but it's unclear if this is just part of his public relations policy.
  • The Valheru in Raymond E. Feist's Riftwar series.
  • Iain M. Banks's Culture novels are practically littered with Precursors, numerous advanced civilizations that existed in aeons past until they variously died off, Sublimed, or just plain mysteriously disappeared. These Precursors are the Sufficiently Advanced Aliens of Sufficiently Advanced Aliens, since most of Banks' protagonists themselves belong to a civilization that can casually travel across the galaxy, build gigantic habitats in space, and use the fabric of the Universe itself as a weapon — and they are occasionally awed by the Precursors.
  • In Terry Pratchett's novel Strata, the Precursors built the titular strata machines reverse-engineered by humans for building planets, and other techology that humans didn't already develop themselves. These planet-building (and terraforming) precursors, called "Spindles" due to their great height, had their own set, called "Rollers" who didn't make celestial bodies, but megastructures (their ship is 500,000 miles long). These guys were preceeded by "Paleotechs", whom destroyed stars to make heavy elements (and pretty nebuli). These, in turn, had "ChThons", Space Whales who exhaled hydrogen and kindled suns. Every precursor race had some kind of celestial artwork, which they made for no other reason than a hobby, and then they went extinct, all the way back to the universe being created by a multiverse-spanning Mega-Corp. This is, in fact, mostly a lie; the Mega-Corp was the only real one, and they just wanted their creation (really only a few tens of thousands of years old) to have a bit of backstory..
  • In The Dark Side of the Sun, the Precursors called "Jokers" were known only for the mark they made on the universe of building blatantly impossible things for no known reason but the lulz.
  • Every known non-human race in Andrey Livadny's The History of the Galaxy series can be considered a precursor, as four of them are at least 3 millions of years old, while several others are billions of years old. Humanity is the youngest known race, even though their technology level means they are strong enough to kick everyone else's backsides should the need arise. It helps that most of those races have long ago passed the peak of the civilization. In fact, two of them spent several million years as slaves, degrading their technology to the point where they forgot about their former greatness.

    Ironically, the race that is actually known as the Precursors (or Forerunners, as there is no official translation to English) are non-sentient proto-lifeforms which have been created by an energy being (supposedly, the first being to ever gain sentience in the universe) to serve as seeds for its copies. The Precursors contained within themselves the first ever DNA molecule. The unintended side effect of this was the creation of all known organic life in the galaxy.
  • Sergey Lukyanenko's A Lord from Planet Earth series features the Seeders, mysterious ancient beings who have left highly-advanced artifacts, some of which are Black Boxes, while others are understood and adapted fairly well. They have also left mysterious spherical temples on every inhabited world (except Earth). It is eventually revealed that the Seeders are humans from the future, who have seeded their past with humanoid races and advanced technology to create an army to fight an extragalactic enemy (Earth was left undisturbed to avoid messing with history).
  • In Robert E. Howard's Conan the Barbarian story "Shadows In The Moonlight" Olivia thinks a god had been there in times she dreamed of, even though absent now.
    "The nameless, forgotten ones. Who knows? They have gone back into the still waters of the lakes, the quiet hearts of the hills, the gulfs beyond the stars. Gods are no more stable than men."
  • The Arisians feature predominantly in the Lensman series. As well being the ancestors of all species (save one), they devise a multi-eon spanning plan leading to the birth of the Children of the Lens. These five psychic superpeople will not only be able to help vanquish the enemy (a race of malevolent being hailing from another space-time continuum), but will grow in power to become greater then the Arisians themselves.
  • Subverted in the Hainish books and stories by Ursula K. Le Guin. The "Hain" are precursors who created humanoid life forms on many worlds (including earth), but they are still around and still a dominant species in interstellar society.
  • The ancient race that created the warp drive in Into the Looking Glass by John Ringo and Travis S. Taylor after the first book. They also created a space station that can control the output of an entire star. Why? A systemwide concert venue!
  • In Michael Flynn's The January Dancer, "the folk of sand and iron."
  • Steve Perry's Matador Series had the Zonn, a race that died out thousands of years before humanity achieved FTL. They didn't leave behind much other than interesting ruins on a number of worlds.
  • The Star Wars Expanded Universe has several features that are attributed to Precursor-like races. The two most prominent are the Rakata and the Celestials:
    • The Rakata, who debut in Knights of the Old Republic, created the first modern hyperdrives, built a vast empire (though it had relatively few planets since their dark side-powered hyperdrives could only travel to worlds with a large Force presence) and created a massive orbital factory called the Star Forge which could build enough materiel to supply their entire empire.
    • The Celestials lived much further in the past, circa 200,000-50,000 BBY. They created Centerpoint Station (a giant repulsor beam that created the Corellian system and is so advanced that a 25,000-year-old Galactic civilization cannot replicate or even understand how it works!) as well as the Hyperspace Triangle that bisects the galaxy (which makes galactic civilization possible), the Maw Cluster of black holes, the hyperspace anomaly that seals off the Unkown Regions and much more. The Rakata and most of the other "younger" precursor races started out as vassals of the Celestials. The Celestials were created by the EU's then-head writer Troy Denning in his novel The Joiner King, and they play a key role in the backstory of Denning's Myth Arc that stretched from the Dark Nest Trilogy to Fate of the Jedi; Denning also arc welded them to existing elements of The 'Verse such as the aforementioned Centerpoint, which debuted in The Corellian Trilogy a decade earlier. Only in the very last book of Fate of the Jedi is their true identity revealed as the Family of Mortis, as seen in Star Wars: The Clone Wars.
  • The Psalms of Isaak has three levels of this, each filling a different precursor niche. Earliest were the Younger Gods, who were so far in the past little of their works remain, but generally come off as Benevolent Precursors. They were followed by the Weeping Czars, Neglectful Precursors who are mainly remembered for bringing the third group down on the world. That would be the Wizard Kings, very much Abusive Precursors, though they still have worshippers in the present day of the series. The last Wizard King, Xhum Y'Zir, used a spell called the Seven Cacaphonic Deaths to devastate most of the world to avenge his dead sons, giving rise to the contemporary civilizations. The Younger Gods themselves were descended from the Elder Gods, who are hardly ever mentioned and so far into the past that they're little more than a mythical footnote, but are implied to be modern humans, or maybe our direct descendants (though Earth All Along is averted- the books are set in what is eventually revealed to be a Lost Colony, not Earth).
  • In Robert A. Heinlein's Between Planets we have the First Empire which originated on the Fifth Planet and which became the asteroid belt. Its ruins could be found on Mars and Venus and beneath the oceans of Earth. Don Harvey's parents were doing archaeological work in ruins on Mars while Don was at Boarding School on Earth. While its technology was not immediately viable, records left behind contained hints to a new physics that through difficult research led to 20 g spaceships and artificial gravity. The story gave the example of reading a treatise on modern electronics being written in Sanskrit poetry being lucid in comparison.
  • The Dolbrians In SA Swann's Terran Confederacy universe terraformed an unknown but large number of worlds, several of which still have star maps and/or megalithic artifacts on them. The Face on Mars is one such artifact. They vanished from the galaxy millions of years ago, for unknown reasons.
  • The Quyans from The Stone Dance of the Chameleon, whose civilization preceded that of the Chosen. They are later revealed to actually be still around, as the Chosen's slaves called "sartlar".
  • In Commonwealth Saga, the Planters are an apparently long gone race who seeded a planet with "plants" strange combinations of organic and machine which come in ground, aquatic and orbital varieties. The humans who discovered the planet are secretly studying them — non-invasively, in case the Planters come back and are displeased that the humans have damaged their creation.
  • Played with in the world of The Prince Of Thorns, with the beings referred to as "the builders", who created incredible works of technology and then disappeared. It becomes increasingly apparent that the world is not your average Medieval European Fantasy, but is actually After the End — "the builders" were us, before we nuked each other and lost most of our knowledge.
  • In the Malazan Book of the Fallen, the Imass were what has become known as one of the Four Founding Races (together with their potentially Recursive Precursors the Jaghut, the Abusive Precursors known as the Forkrul Assail and the Neglectful Precursors, the K'Chain Che'Malle). Having been a hunter-gatherer society, they haven't left any advanced technology behind and besides, the T'lan Imass are still around anyway. Quite literally, the Imass were also the precursors of humans, preceding and in some places co-existing with them much like the Neanderthals did in the real world.
  • The Eldraeverse is littered with Precursor artifacts; there's considerable evidence that the eldrae homeworld itself — a Big Dumb Object rather than a planet — is one. There's not much indication of what happened to them, and some eldrae are a bit disturbed that they're apparently the oldest of the extant young sophont species.
  • The first Noob novel mentions that another sentient race, the Keosamas, existed before the Olydrians, the race that all Player Characters incarnate. Keosamas reached a high level of progress in terms of magic due to the fact that Olydri was much more hostile at the time, so they Had to Be Sharp. Suriving Keosamas can be found in a legendary underwater settlement near Piratas Island.
  • The Shattered Sea takes place in a Norse Fantasy Counterpart Culture within a Medieval fantasy setting, which has been built on the ashes of a previous Elven civilization, which built with materials that cannot be replicated and had strange magical devices. However, it's heavily implied throughout and more or less revealed that the setting is Earth All Along (it's actually not a Fantasy Counterpart Culture- it's actually in Scandinavia), the Elves are modern/slightly futuristic humans, and Elf Magic is just technology.
  • In "A Colder War" by Charles Stross, Stephen Jay Gould is presenting some recent paleozoic fossils and artifacts to members of a top-secret government agency that, unknown to him, deals in Eldritch Abominations straight out of H. P. Lovecraft, and has been trying to keep this stuff secret from the public. When he shows them a fossil of one of the "Old Ones" from At the Mountains of Madness, the protagonist thinks "he's found a Predecessor, god help him."
  • In Kane the last of "elder races" like the Scylredi and the Krelran, still live in degenerate forms, having forgotten their former greatness. Kane also meets Dwassllir, the last king of giants, in "Two Suns Setting".
  • The Gam3: The Game was created by the Predecessors and the Lords of Life as the culmination of their galaxy-spanning genocidal war. The Predecessors are still around, and are the strongest individual players in the game. The Lords of Life have barely been mentioned beyond their name.
  • In the Gentleman Bastard series, the Eldren dotted the continent with vast constructions of utterly indestructible Elderglass, far beyond the capabilities of human alchemy or magic to duplicate or alter. The entire species disappeared millennia before the beginning of the series for no known reason. The Bondsmagi of Karthain believe that Eldren magic drew the attention of something terrible from beyond the stars, and take great pains to disperse their own magic to keep it from happening again.
  • There are two examples in The Licanius Trilogy. The Builders were first, and they created magnificent cities, buildings and engineering marvels before causing their own destruction. The Shalis were second, and they mastered the use of Essence and passed down their knowledge to humans before going extinct at the hands of the Venerate.
  • In The Expanse, a precursor race once had a huge empire, and tried to colonize Earth by sending a thing which can change living beings to build a portal.
  • In the Perry Rhodan series, a million years ago the Barkonids settled the galaxy as their planet was shot out of it. New colonies weren't given a lot of technology to prevent them from becoming decadent, which let most of them to become low tech. Over 50,000 years age the 'First Mankind', the Lemurians, settled the galaxy again, but they were wiped away in an interstellar war and fled to Andromeda galaxy. Then at least 20,000 thousand years ago we get the Akonids, who spread out but become really isolationist after a colonial war of independence with the Arkonids, who are currently becoming decadent, the next step will probably be humanity.
  • Arrivals from the Dark had the Daskins, a race mentioned in myths and legends of most galactic races. According to some, they once ruled the galaxy and had advanced to the point where it's impossible for modern races to figure out how the remains of their tech work. They may be able to copy some of it, especially their Organic Technology, though. The rumors also say they had Voluntary Shapeshifting and Psychic Powers. They also built a Portal Network through the galaxy that even reaches as far as the Magellanic Clouds, with entrance points located in gas giants, including Jupiter (the Great Red Spot). At some point, some speculate that they have realized that they became Abusive Precursors and left the galaxy, leaving behind their creations, known as the Lords of Emptiness, as temporary stewards, until another race was worthy of taking up the mantle. There are indications that humanity is being groomed for the role.
  • The Sister Verse and the Talons of Ruin has the Crest, who created the Dreadlands and most of its infrastructure before they were annihilated by the Lord in White and its darklings.
  • The Shannara Series has an interesting take on this; as the series is set in the future, it's our current civilisation which is the precursor civilisation.
  • Rogues of the Republic: The "ancients" colonized the continent thousands of years ago, bringing with them incredible Magitek and all manner of servants, including all the human races, elves, and dwarves. Most modern civilizations are built on the scraps of technology they left behind, and even though none of it is operating perfectly, it is still capable of incredible things. They left the world in order to protect it from the Glimmering Folk. As long as the ancients are gone, the Glimmering Folk cannot step foot on the world or any other connected to it.
  • The Grey Folk of Christopher Paolini's The Inheritance Cycle. They were the original speakers of the Ancient Language, but lived in a time when the language wasn't connected to magic at all; instead, one cast spells by thinking about what one wanted to happen. However, this method was prone to interference by intrusive thoughts. Speaking one's intent aloud was helpful, and so was common practise, but wasn't foolproof. note  Eventually, one of the Grey Folk became distracted and accidentally cast a spell that devastated the whole world. Horrified, the surviving Grey Folk cast a spell that bound their language to magic, allowing the act of speaking one's intent aloud to override such distracted thoughts and maintain the spell's intended structure, creating magic as it's known today. The surviving Grey Folk were insufficient in numbers to maintain a population, so they're stated to have interbred with the 'younger races' and eventually disappeared.
  • In Nexus Nine the main character is a Precursor, of sorts, a fusion of an uplifted cat in the Tri-Galactic Navy and a millennia-old memory chip implanted in her brain. Unfortunately, The Fog of Ages has set in and she doesn't recall the chip's origins, just that the humans most uplifts revere as "The First Ones" were actually preceded by an eras-old octopus civilization and it came through a Nexus pathway at some point.
  • Semiosis: The human colonists on Pax move into an abandoned city built by aliens who had arrive on the planet before them and then disappeared. The aliens are named "Glassmakers", as much of their architecture features ornate glass domes, windows, and ornaments. A century later, the colonists' descendants meet a group of living Glassmakers, who rejected mutualism with Pax's sapient Plant Aliens and adopted a nomadic existence.

    Live-Action TV 
  • Andromeda's lead character Dylan Hunt was a (half-Heavy Worlder-half-) member of a highly developed culture which was at the heart of the old Commonwealth. In later seasons, the series begins to pursue those "lost people" because of their amazing advancements which have since been lost, only to learn they intentionally closed themselves off from the outside barbarism.
  • Babylon 5:
    • The "First Ones", who have all mostly emigrated "beyond the rim of the galaxy", although some remain lurking about in known space. Lorien, the "First One", is literally the first sentient being in the galaxy.
    • The Vorlons and the Shadows, which drive the main plots of the entire series, have meddled extensively in the affairs of younger races.
    • In an homage to Forbidden Planet, Epsilon 3 (the planet which Babylon 5 orbits) houses many super-advanced artifacts of a long-dead alien race.
    • The humans and the Minbari, who will become precursors to the future races, as shown at the end of Season 4. And to Earth itself, when the Rangers secretly guide the planet's rediscovery of technology following "The Great Burn" in "The Deconstruction of Falling Stars".
  • In Battlestar Galactica (1978), the Cylons were originally a race of lizard people. They built robots to act as their servants, but the robots rebelled and wiped the lizard people out. Eventually, these robots ran into humanity. Humans have already been at war with these robots for a thousand yahrens when the series opens.
  • Doctor Who:
    • The series sometimes paints the Time Lords like this. At the dawn of their civilisation, they sent a star supernova, and caged the resulting black hole to fuel their time travel. They fought several wars against other primordial races (notably the Great Vampires), driving them to virtual extinction. In at least one instance, they're suggested to have actually driven magic from the universe and the Doctor's TARDIS is frequently described as the most powerful and/or advanced ship in the universe with the Heart of the TARDIS, when harnessed by Rose Tyler, being a full on Reality Warper capable of wiping out an entire Dalek battle fleet with the wave of hand, accidentally granting someone Resurrective Immortality and scattering a message through time and space. If it hadn't started to burn Rose out, she'd probably have gone further. Later, the Master jury rigged it into a machine powerful enough to hold together a paradox connecting Earth and the very end of the Universe. Furthermore, that TARDIS? By Time Lord standards, it's obsolete. It was old when the Doctor found it, and other Time Lords frequently making disparaging remarks about its quality/patched together nature. They were even worshipped as gods on at least one planet, until their technological gifts backfired, and they instituted a policy of non-interference. The Expanded Universe attributes the widespread presence of Human Aliens in the setting to them (offering multiple versions of the reasons why).
    • The unseen race (otherwise known as the Disciples of the Light) who caged the Beast also qualify. It had done this before the beginning of time. The Doctor points out that this is both stupid and impossible. But that doesn't stop it from still being true.
  • Farscape:
    • The Eidolons, who once controlled an entire galaxy through their power to induce "rationality and tranquility" in others before their near-extinction several millennia ago. For good measure, they are actually responsible for the creation of the Peacekeepers and the Sebacean race as a whole, having abducted primitive humans from Earth and altered them to act as bodyguards.
    • Subverted in the case of the Ancients, who, despite the name and their status as a Dying Race, aren't precursors at all. In fact, in spite of their impressive technology, they've actually gone out of the way to make sure that nobody knows about them unless absolutely necessary: this is because they were sent from another dimension to monitor the development of wormhole technology.
  • The "First People" from Fringe.
    • They're actually Walter and Peter (mostly Walter) in a Stable Time Loop sending the artifacts to the different universes.
  • Slight subversion: the inconceivably ancient Morphin Masters of Power Rangers themselves worshipped their "Ancient Ancestors" who watched down on them... Apparently from Rita's similarly super-ancient lunar palace.
  • Red Dwarf postulates that all life originated on Earth; after three million years, there are many variations on sentient life — creatures descended from genetic experiments, animals that evolved into sentient humanoids, self-sustaining races of androids, "pan-dimensional liquid beasts", etc. etc. etc.
  • The Stargate-verse:
    • The gate network itself was created by one such race, named (creatively) the Ancients, though they later are discovered to have called themselves the Anquietas (formerly the Alterans, later the Lanteans after the planet on which Atlantis resided). They eventually ascended and adopted a strict non-interference policy on the lower planes. The other side of that coin is the Ori, also ascended Alterans but with a very different policy; they are eventually revealed to have driven the Ancients from their home galaxy to the Milky Way.
    • The Ancients themselves discovered evidence of even older race of Precursors (or God) than themselves who left a complex message/pattern or signal deep within the Cosmic Microwave Background Radiation of the universe either before or shortly after the Big Bang.
    • The Asgard, Goa'uld, and Wraith. The Goa'uld use humans as hosts and slaves, and founded Egyptian civilisation, and the Wraith loosely farm humans as food (though the Wraith themselves are the result of a life-sucking creature called the Iratus Bug being mutated by human DNA, possibly naturally, or possibly, as the Expanded Universe hints, by Ancient experiments), while the Asgard placed several worlds in the Milky Way under military protection from the Goa'uld.
  • Star Trek
    • The Preservers and the Iconians, amongst others:
    • Some TOS examples would be the Fabrini, and (from "Return to Tomorrow") the race from which Sargon, Henoch and Thalassa are the only survivors.
    • The Ancient Humanoids in Star Trek: The Next Generation, though it seems to be a given in the Expanded Universe that the Ancient Humanoids are the Preservers.

  • In the The Sword song, "Fire Lances of the Ancient Hyperzephyrians", the Precursors are humans from roughly the current era. After a presumably nuclear war screws up the planet, the survivors idiotically decide that they need to find and launch more of our missiles.
  • The Jimi Hendrix song "Up From the Skies" has an alien revisiting Earth after a long hiatus: "I have lived here before/ in days of ice/ and of course this is why I'm so concerned/ and I come back to find/ the stars misplaced/ and the smell of a world/ that's burning." Maybe a precursor, maybe not, but he'd been here a long, long time ago.
  • Some of Doctor Steel's music and videos, most notably his song "Planet X Marks the Spot", deal with the Ancient Astronaut theories of Zechariah Sitchin.

  • According to Loony Labyrinth, the ancient Minos were masters of time travel, genetic engineering, and other amazing feats.

  • In the backstory to the Cool Kids Table game Small Magic, the Tenshi and the Oni are this for humanity. When a Tenshi and an Oni had a child together (the first human), it led to a war that wiped out most of them, forcing the Tenshi to put the Oni in a deep sleep and flee the world.

  • Dimension X: In "The Lost Race", an adaptation of Murray Leinster's "The Lost", the titular species are an ancient race who constructed the canals on Mars and the ruined cities on Titan, Centaurus II, and Centaurus III, around one hundred thousand years ago. Their influence extended to more than a thousand planets before they mysteriously destroyed themselves. The archaeologist Mr Howell determines that the Lost Race were a race of highly evolved monkeys who were being slowly mutated by atomic energy. He concludes that they committed mass suicide as they could not stand the idea of turning into human-like creatures.

    Tabletop Games 
  • Cerulean Seas: The great civilisation of the drylanders and their sahuagin enemies, which flourished in the ancient past and perished in the chaos of The Great Flood. The phantom lobsters are also described as descendants of a once great eurypterid empire.
  • Mutants & Masterminds have this in the form of the "Preservers" in Freedom City.
  • Dungeons & Dragons:
    • Forgotten Realms:
      • The three great Creator Races — the saurian sarrukh, amphibious batrachi and avians aearee — ruled Abeir-Toril in the days when the world was warm, and created many of the modern-day sapient races as servants, soldiers and experiments. Their empires fell and most went extinct, although their ruins and creations endure into the modern day. Other races, including dragons, humans and the fey, are sometimes counted among the creator races. The exact listing is sometimes discussed, but the rule seem to be "Precursor, and native to Abeir-Toril". This makes humans a Creator Race (because at least some of them developed on Toril, and built mighty civilizations now gone), but elves aren't (they built mighty civilizations now gone before the humans did, but they came from the Feywild after the original Creator empires rose and fell).
      • In more recent history, the human empires of Netheril, Imaskar, and Illefarn flourished before they disintegrated in nasty ways.
    • Planescape: It's heavily stated that the baatezu (devils), yugoloths (daemons), and tanar'ri (demons) were each predated by three primordial races of fiends: the ancient Baatorians, the baernaloths, and the obyriths, respectively.
    • Dark Sun: The rhulisti, or ancient halflings, were the first civilized race in the setting; all other humanoid races, including humans and giants, are descended from them, while those who retained their original form are now mostly cannibalistic savages.
    • Mystara's past history is chock full of this trope, including the Carnifex, the Blackmoorians, and the Nithians.
    • Subverted in the Ravenloft setting: while many societies have legends about Precursors, it's all false history imposed upon the memories of natives, as their world's only a little more than four centuries old.
  • GURPS:
    • GURPS Space includes Precursors as a potential element a Game Master might want to weave into his game world.
    • In the Meta Origin of GURPS Supers: IST, beings called the Seeders (who may or may not be the same as GURPS Space's Precursors) travelled the galaxy millennia ago, tweaking the genes of varous species to give them potential for intelligence and a unique superpower. Humans Are Special because this went wrong, and instead of evolving so we all had the same power, we evolved to have the possibility of developing all kinds of powers.
  • Warhammer (both fantasy and 40k) has the Old Ones, who created most sapient races. In Fantasy they just left, never to return, when the polar warp gats collapsed and let Chaos into the world, but in 40k their backstory is given out in more detail. Apparently they had a massive, galaxy-shaking war with another old race, the Necrontyr (which later became the robotic Necrons), and created many races to help them fight. They (as well as most life in the galaxy) were nearly wiped out in the aftermath of the war, when the psychic disturbance caused by the massive amount of warp-fueled power used by them and the races they created caused the reality to tear apart and horrible creatures to spill through.

    These may or may not be the same race, and the two collapses may be parts of the same event. The 7th edition Warhammer core book and Lizardman book hint heavily at this, and the 40k Necron book suggests using Lizardman models to represent the last refugees of the Old Ones.

    The Warhammer world (un)officially used to be an isolated world in the Eye of Terror of 40k, but had been drifting from that idea for a while before Word of God revealed them to be distinct settings, sometime around '98.
  • Spacemaster has the Sianetic Harbingers, a long dead (?) race of beings that seeded the Galaxy with humanoid life. They were powerful telepaths and had a level of technology that dwarfs modern Terran equipment. Their artifacts and ruins are both desired and feared. Also, in the Privateers campaign setting, the "Architects" seeded life on many planets 4 billion years ago and guided the evolution of the seven major races until quite recently, then disappeared. Very little is known about them in-universe.
  • Exalted does this several times with its First Age, Second Age, and possibly the Sixth Age. It even has 0th Age and 1st Age civilizations that few inhabitants are aware of.
  • The Splinter: The history of the Realm stretches back 100,000,000,000 years and includes potentially thousands of precursor species/civilizations. This results in a tremendous range of (some very bizarre) Schizo Tech that can be scavenged by players.
  • Numenera: The game's central premise involves discovering the unfathomably advanced technology of eight previous godlike civilizations, some of which were capable of moving stars and bending the fabric of reality to their whim. One civilization was responsible for extending the lifespan of our Sun, which would have become a red giant and scorched all life from existence on Earth, a fate completely unknown to all the inhabitants of the present day. The world is still littered with the wreckage and detritus of the Precursors, from half-working, country-sized machines and bizarre architecture to still entirely functional robots, genetically and cybernetically engineered animals and long-stranded aliens, making for a very Adventure-Friendly World.
  • Atlantis: The Second Age: The world is destined to be dominated by seven different species over its existence. Humans are the fifth of these races, making the Jinn, Ophidians, Lemurians, and Atlanteans all Precursor races, and making humanity fated to be itself a Precursor for two future species. Somewhat unusually, none of the old Precursors have gone extinct yet, but their numbers and powers have been greatly diminished. The Atlanteans are still trying to cling on to their power, but humans are already in the process of taking over.
  • Race For The Galaxy: The Alien Overlords were apparently a very advanced species and the dominant civilization in the Milky Way at some point in the past, but have now vanished. They did leave behind many artifacts, including some very advanced technology. They also seem to have uplifted and genetically engineered several servitor races. Since the backstory in Race for the Galaxy is told only in the sketchiest fashion, however, very little is known about the Overlords.
  • Cosmic Encounter: The backstory has a universe-scale version of this to explain the game's huge number of alien races.
  • Pathfinder:
    • Azlant was once a mighty empire whose magic and technology far outstripped their neighbors. The secret to their power was the aboleths running the nation from behind the scenes, whose advancements were even greater than their puppet nation. When their shadow empire was discovered, they called down meteors to obliterate the entire continent rather than allow their subjects to disobey them.
    • Thassilon, founded by Azlanti secessionists, was itself a massive empire with incredible magic, but was brought low during the same meteor impact that annihilated Azlant.
    • The xiomorns were an ancient species from the Plane of Earth who had mastered the secrets of life and came to Golarion to practice their work, creating caverns deep below the earth to use as test chambers for environments and lifeforms. Come present day, they're nowhere to be found and their self contained caverns have cracked open, revealing their remaining treasures to the world even as it loosed their creations.
  • Champions: As Precursors are a stock feature of superhero comics, Champions features the idea from time to time. For example, Kingdom of Champions introduced the "Progenitors" in this role.

  • BIONICLE toyed with this idea a lot, but eventually subverted it with the Great Beings: hailed in the story's early years as powerful, mythological figures responsible for creating the Matoran Universe and its creatures, but then moved to other projects, and chaos ensued. Later it was revealed that these Beings were a highly eccentric group of scientist governors, and can only be seen as the precursors to the Matoran Universe's inhabitants — whom they themselves viewed as expandable machines. Otherwise, they were just one of Spherus Magna's (the planet which they once ruled over) several species. They are also still around someplace, but are hiding, as the inhabitants of their world hated their guts.

    Video Games 
  • In the 7th Dragon franchise, the Lucier played this role, originally. A highly advanced race whose technology seems almost magical to modern humans, they were at their peak when humans were just transitioning from the Paleolithic to Neolithic. This is also when they ultimately sacrificed themselves to defeat the first Draconic invasion of Earth, saving humanity and the rest of the biosphere. They're revived via cloning in 7th Dragon 2020-II and given their own nation for their participation in thwarting that invasion, and by the original 7th Dragon, which takes place so far After the End that trope no longer applies — hinted at originally, confirmed later — they're just known as one of the races of Eden, as the Earth of that time is known to its inhabitants.
  • The Remnant system in Achron (where the game largely takes place) has ancient alien ruins scattered throughout. The technology found in these ruins has become them basis of humankinds most advanced tech, most notably teleportation. The system is then invaded by aliens that use the exact same tech as those found in the ruins. And that technology includes Time Travel. Hmmm...
  • In Ascendancy Xenoarchiological Ruins pop up all the time, sometimes giving access to a technology far up the Tech Tree, though these are not always useful without adequate advancements in production capability and/or power sources.
  • Assassin's Creed: The premise of the series' Meta Plot is that an advanced Crystal Spires and Togas civilization preceded our own, but was devastated by an apocalyptic event 75,000 years ago. This civilization was ruled by The Ones Who Came Before, a long-lived, hyperintelligent species that regarded humans as inferiors at best and slaves at worst, enforcing their rule with Mind Control technology. After the End, dying of underpopulation, they seeded the world with artifacts programmed to Fling a Light into the Future so that humans in the 21st century could save themselves from a recurrence of the same catastrophe. They also created Half-Human Hybrids in an attempt to pass on their "sixth sense" of "knowledge", which was only partially successful, but resulted in a line of humans who were able to interact with their artifacts and use their powers. Our concepts of gods, in this world, are distorted remembrances of The Ones Who Came Before.
  • In The Bastard of Kosigan, a Neverwinter Nights community module series, the precursor race were early humans who lived on Atlantis, but after the natural disaster that resulted in its sinking split into the "control" faction and the "free will" faction. The control faction, led by Gabriel, eventually won the ensuing war with the free will faction, led by Elisa Than (read Satan, though she wasn't actually that bad). Their war was primarily fought by using their advanced technology to mimic deities and create religions among lesser humans, so the control faction are the angels of modern Catholicism (the game is set in approximately 1300, but with magic and monsters and such) while the freedom faction became the demons. Ironically, Jesus was actually manipulated by the demons (and you even get to meet the demon commonly known as St. John), and the angels created the Catholic church to subvert his message.
  • In Borderlands, the Eridians fill this role. They had created an incredibly advanced civilization on the wasteland planet Pandora, but it all mysteriously vanished millenia before the game's events. Remnants of their civilization are all over the place, and simple artifacts of their technology hold immense power. But by far the most legendary aspect of their legacy is The Vault, a container for... something, no one really knows what, that is the most sought after power on Pandora. The Vault is revealed to be the Tailor-Made Prison for The Destroyer, an Eldritch Abomination which nearly wiped out the Eridians. They sacrificed everything to contain The Destroyer within The Vault, leaving "Guardians" to ensure that no idiot would open the vault and cause the apocalypse. It doesn't work... but the player(s) handle the Destroyer just fine, and the sequel shows them being set to keep doing that to the other nasties in any others of the Eridians' vaults. It's noted that the various corporations' interest in Pandora is due to alien relics being found on a different planet nearby, so either the Eridians were space-faring, or there is more than one Precursor civilization. Tales from the Borderlands has its protagonists open an Eridian vault that houses a chest within it, but them opening the chest is only shown to have made them suddenly disappear.
  • The Kingdom of Zeal in Chrono Trigger which in 12,000 BC (during the Ice Age) built floating cities in the sky and an "Ocean Palace" under the sea. Their civilization was powered originally by the Sun Stone (which harnessed solar energy) and then by the more abundant (but of course, more dangerous) Mammon Machine which extracted energy from Lavos the Big Bad from outer space.
  • In the Civilization: Test of Time sci-fi campaign, the entire system is filled with ancient alien tech, including space platforms in orbit of Funestis and even more advanced ones floating in the upper layers of the gas giant Nona.
  • Cultist Simulator has the enigmatic race of insectoids known as the Carapace Cross, who worshiped the Gods-from-Stone. Some in-game lore implies they were devoured by humanity, some states they became humanity, and other implies they will descend from humanity in the future.
  • Dragon Age: The ancient elves serve as this setting's precursors, despite the fact that their descendants are still alive and kicking. Much of the magic that made ancient Tevinter so powerful is implied to have been stolen and reverse engineered from elven artifacts, and modern Dalish elves spend most of their time combing through ruins for scraps of history left behind by their ancestors. Interestingly enough, even though they were once immortal and capable of incredible feats of magic (such as creating entirely new species, physically walking in the Fade, and constructing the Veil between the waking and dreaming worlds), ancient elves don't inspire any of the awe that usually accompanies this trope from their human successorsprobably because their descendants are now scrubbing floors. Another reason is that the other races have their own precursor civilizations to look up to; the setting in general is deep into a dark age that they're only just starting to crawl out of, and everyone is lucky if they can use things like the Imperial Highway and Deep Roads, much less make more.
  • The Elder Scrolls:
    • For all the mortal races, save for possibly the Argonians (the lore is unclear), there is the Ehlnofey. They are the lesser et'Ada ("original spirits") from the creation of Mundus who remained in the mortal realm and populated it, becoming the progenitors of the modern races.
    • After the Ehlnofey, for the races of Mer (Elves), come the Aldmer. They came to Tamriel during the Merethic Era from the now-lost continent of Aldmeris (though other sources say that Aldmeris was another name for Tamriel prior to the emergence of the races of men). Whatever the case, the Altmer are their closest living relatives with the other races of Mer having split off over the ages for various reasons (usually religious in nature).
    • For the races of Men, except for the Redguard and maybe the Nords (again, there is unclear and contradictory lore) it is the Nedes. Septim propaganda claims that they came from the now frozen-over continent of Atmora, though this may have been a lie meant to appeal to the mighty Nords to make them supportive of the Cyrodiilic empire. Other sources state that they were among the many human tribes native to Tamriel. In either case, they are definitely the precursors of the Imperials and Bretons, with the Nibenese Imperials as their closest living relatives.
    • There were known to be actual migrants from Atmora, known as the Atmorans, who emigrated to Tamriel throughout the 1st Era after Atmora began to experience the "Frost Fall," a gradual complete freeze that would render it uninhabitable. They definitely make up at least part of the ancestry of the Nords.
    • The Dwemer ("Deep Elves or "Dwarves") and the Ayleids ("Wild Elves") were each Abusive Precursors toward the Falmer ("Snow Elves") and the Nedes, respectively. Additional details can be found on that trope page.
    • The Men of Akavir, possibly or in part to the Tsaesci "snake vampires''. The lore states that there was once a race of Men who lived on the continent of Akavir, far to the east of Tamriel. However, they were "devoured" by the Tsaesci and are now gone. While some believe this means they were literally eaten, another theory posits that this is a metaphor for being enslaved and/or culturally absorbed. (Another work regarding the Tsaesci uses "devour" and "enslave" interchangeably in reference to what the Tsaesci did to the red dragons of Akavir.)
  • The Endless of Endless Space. Unlike most precursors, the denizens of the galaxy know exactly what happened to them; they ended up fracturing into factions (the Concrete and the Virtual) and wiped themselves out in a massive interstellar pogrom millenia ago; the frozen survivors can be counted on one hand. Before that happened, though, they nurtured species into sapience (including the Drakken of Endless Legend), terraformed worlds with their artificially intelligent robots (who are still around after completing their mission), and built vast megastructures; planetary core taps, orbital shipyards, et cetera. The Pilgrims, a human nation of scientists and mystics, seek out the Endless's lost homeworld, Tor.
  • In Escape Velocity Nova, the precursors are known as Those Who Came Before (no relation to Assassin's Creed's precursors). Very little is known about them, since they merged with the universe en masse centuries (if not millennia) before humans achieved space travel. They left behind bizarrchitecture like artificial rings around the planets Kont and Kel'ar Iy, and a ringworld called Tre'ar Helonis. And in four of the six mission strings, humanity ascends and becomes precursors in turn to an unnamed alien race.
  • In EVE Online, we are the precursors. We used the EVE wormhole to travel to the Galaxy of New Eden, but when the wormhole collapsed, so to did civilization in New Eden, and as new civilizations formed, their origins faded into myth and legend.
    • The Apocrypha expansion has given us a glimpse of some of the old technology which the precursor humans left behind: the sleepers. Ancient drone ships guarding long forgotten structures packed with technology that makes the most advanced player ships and weaponry look like we're using BB guns to fight enemies with nukes. The technology that has been scavenged so far has allowed the playerbase to build relatively small cruisers with the firepower and defenses equal to and even beyond battleships. It will be a terrifying day when we can finally build new kinds of battleships with sleeper tech.
  • The Sky People were the once powerful ancestors of the Lufenian race of Final Fantasy. After mastering the power of the Wind Crystal, they constructed many ancient wonders such as the Airship, the Mirage Tower and the Flying Fortress. Their civilization was eventually destroyed by the Fiend of Wind, Tiamat.
  • The Cetra of Final Fantasy VII were the first inhabitants of the Planet, which they cultivated in their search for The Promised Land. They looked exactly like humans, except that they were deeply spiritual and could communicate with The Lifestream. In fact, it's said that humans are descendants of Cetra who stopped the search for the Promised Land and chose a life of convenience. Two thousand years ago, the Cetra were nearly wiped out when the alien Jenova started infecting them with a virus which mutated them into monsters. Though the Cetra managed to seal Jenova, their numbers rapidly dwindled. The last known full-blooded Cetra was Ifalna, who was experimented upon by Shinra as they sought for her knowledge of the Planet. Before she died, she fell in love with a human and gave birth to Aerith. Although Aerith is only half-Cetra, she is still able to communicate with the Lifestream, can sense when people die (as they "return to the Planet"), and knows how to summon Holy, the only spell capable of defending the Planet from the Meteor.
  • The Zilart of Final Fantasy XI. A few of them still remain but most of them are relatively insane and/or genocidal. Only two Zilart favor the current civilizations at all, and one of them Ascended to a Higher Plane of Existence.
  • The "Ancients" from FreeSpace fit this trope, although for once we actually get a detailed history of their annihilation at the hands of the Shivans. (They recorded this so that later races would be warned not to piss the Shivans off... or, having failed that, would have some insight into the Shivans' weaknesses). The Shivans themselves qualify as Precursors in some respects: while not extinct, their technology is far more advanced than humans' and they've been that advanced for at least 8,000 years. There are Epileptic Trees both in-game and out about the origins of the Shivans (whether they were created as weapons by an even older race), and exactly how long they've been at their xenocidal mission (one character muses that there might be multiple Precursors extending far back in time, each annihilated by the Shivans when they grew too powerful and the later ones founding empires on the ruins of those that came before). None of this has been confirmed nor denied by the authors.
  • In Galactic Civilizations II:
    • The unimaginatively named Precursors and their enemies the Dread Lords (who have become Sealed Evil in a Can). The campaign in the original revolves around you fighting the latter, and if the player is unlucky enough to encounter them in a standard game...
    • According to the game's expansions, the "Precursors" mentioned above were called the Arnor, and were the same species as the Dread Lords, but were ideologically opposed: the Arnor wanted to guide and look after new intelligent life, while the Dread Lords wanted to exterminate it. It isn't clear what happened to the Arnor after they defeated the Dread Lords, although one survivor is found in the Twilight of the Arnor campaign.
    • There are also the mysterious Mithrilar, a group of five immortal beings that were precursors to the Arnor and Dread Lords (indeed, they created the Arnor and Dread Lords). What happened to them is unknown, although it is known that one of them, Draginol, was a time-travelling ascended human.
  • Ultimately subverted in Galaxy Angel at no surprise to the viewer but the Precursors who created all the lost technology used in the games come from Eden, another name for Earth. Which makes us the Precursors and the people in the game merely our descendents.
  • In the Halo universe, the Forerunners are very much a precursor race, who believed that they held the "Mantle of Responsibility" for all life in the galaxy. All that's left of them are artifacts such as the titular "Halo" rings. They purposely destroyed themselves activating the rings as a last resort to prevent a traveling parasite called "The Flood" from consuming all life in the galaxy, but not before leaving measures for the reseeding of life afterwards. Oddly, humans seem to have a unique connection to them — much of Forerunner technology, including the Halos, can only be utilized by humans, and the major Forerunner installation on Earth is located in East Africa, right next to the area where modern humans are believed to have first evolved (since Forerunners were contemporaries of Original Man).
    • In fact, the Halo 3 terminals reveal that this connection was because the high-ranking Forerunner known as "The Librarian" felt that humans would be the rightful "reclaimers" of the Forerunners' legacy. Later, The Forerunner Saga books add a twist to this by revealing that most Forerunners felt otherwise, due to a long and bloody war they fought with prehistoric humanity's own highly advanced interstellar empire, which was invading Forerunner space in order to flee the Flood and cleanse infected planets; it ended with the victorious Forerunners completely dismantling all traces of human technology they could find, devolving the survivors into a primitive state (who would quickly (re?)evolve into many of the various hominid species we know about today, including modern humans), and shoving them back to their homeworld of Earth.
    • In Halo 4, we find out that at least one Forerunner still survives; "The Ur-Didact", the former supreme commander of the Forerunner military, who also happens to be the Big Bad. The game also provide evidence, namely a speech given by the Ur-Didact in The Stinger, that there are many more Forerunners living outside of the galaxy, which was confirmed by the audio epilogue to Halo: Silentium.
    • The Forerunners believed that they inherited the Mantle from a long-gone race of even more advanced beings they called "The Precursors", who are revealed in the Forerunner Saga to have played a major role in the creation of both the Forerunners and humanity, among many other species. They ended up being almost completely annihilated when they tried to wipe out the Forerunners for being unworthy of the Mantle. Most of the survivors turned themselves into powder with the plan of eventually re-constituting their original forms, but they all Came Back Wrong and became the Flood. They then apparently decided to eliminate the Forerunners, "unite" all life in the galaxy, and test whether humanity was worthy of the Mantle... or maybe they just wanted their creations to suffer for all eternity. Either way, their technology (which seems to have been made of thought) was completely destroyed when the Halos (the only things capable of destroying Precursor relics) were fired. The prisoner of Charum Hakkor, a scorpion-like creature with 4 arms and an impossibly ugly face, was a Precursor-turned-Flood-Gravemind, while the Forerunner Domain, an immaterial and self-aware galaxy-wide information network, is revealed to be one of their many creations. They themselves were not bound to any form, being able to assume an infinite amount of forms, physical and incorporeal, had minds that transcended realms and dimensions, they created entire realms and dimensions and they are potentially older than the actual universe itself.
  • There are the Solon in Haegemonia: Legions of Iron. You only really find their starbases protected by advanced defenses, which can blow up any ship you have. Presumably, they're meant to hold off their ancient enemies. Once you manage to get past the defenses, though, you get some nifty technology, which helps in your own war against a powerful enemy who turns out to be working for those who have wiped out the Solon. Despite the name, the Expansion Pack The Solon Heritage doesn't explain anything, since it lacks a campaign mode.
  • Homeworld 2 featured the aptly-named Progenitors, who left behind various relics including several Wave Motion Guns which the player and the enemy fight for control of. One of the Wave-Motion Gun ships gave its name to a deity that the current races have been worshipping for several thousand years.
  • Horizon Zero Dawn: Wenote  are the Precursors (or simply "the Old Ones", as is the title we are remembered by). The game is set in a Post Apocalyptic future — somewhere around the late-31st century — where humanity has been reduced to primitive tribes comparable to the stone age. What exactly happened to us is one of the two great mysteries the game's story is centered around (the other being why half the planet's wildlife now consists mainly of cybernetic animals).
  • In Iji, the Komato are the ancestors of the Tasen, and, although it's not clear how close they are to humans, first evolved on Earth, leaving without a trace some time before the halocene period.
  • The Jak and Daxter franchise has an ancient race called "The Precursors". They leave deep-voiced oracular statues and various giant robots scattered about, and depict themselves as glowing Energy Beings, but that's just a Wizard of Oz act; they're really ottsels, otter-weasel hybrids like Jak's sidekick Daxter. In fact, he becomes one because all eco contains their essence.
  • According to Journey's confluences, the White Robes are implied to be this to the Red Robes.
  • The Journeyman Project: The titular 'Legacy of Time' from the third game is a series of artifacts left behind on Earth by an extinct, advanced alien species called the Sosiqui. Each Legacy piece offers a different power; the Atlantean Legacy makes its guardians immortalnote , the El Dorado Legacy grants detailed visions of the future to the city's shaman, and the Shangri La Legacy gives certain monks the ability to transmute matter.
  • La-Mulana has several iterations of Precursors, although you only ever learn much about one of them. And then there's The Mother...
    • In La-Mulana 2 not only do we meet several survivors of the various generations of Precursors, Lumisa brings an end to the sources of conflict that caused each of them to go extinct.
  • The "Ancients" and their adversaries in Legacy of Kain.
  • The Legend of Zelda:
    • In The Legend of Zelda: Twilight Princess, the Oocca are suggested to be the Precursors of the Hylians — as one Adventurer Archaeologist tells us, the goddesses may have made the Oocca first, then the Oocca made the Hylians before retreating to the City in the Sky. This is a slightly inaccurate interpretation in the English version: The Japanese text states they helped the Hylians create a society, rather than literally creating them.
    • In The Legend of Zelda: Skyward Sword, a race of Ancient Robots can be found in the Lanayru Desert. They are all old and worn away. Once you strike a nearby Timeshift Crystal however, you return the local area to the state it was in hundreds of years in the past, where everything is still working. Their joints, and almost every single device within the premises are powered by electricity. This could justify where all of the Schizo Tech in the Zelda series originates from.
    • The Legend of Zelda: Breath of the Wild has the Sheikah Tribe, who had extremely advanced technology 10,000 years before the game's date. Remnants of it include what appear to be computers (including a handheld tablet with networking capabilities and apps ("runes") that can affect the material world around it), autonomous laser-spewing Spider Mechs, melee weapons made of Hard Light, and four Humongous Mecha known as the "Divine Beasts". This Lost Technology is crucial to defeating the latest version of Ganon that's attacked Hyrule. Unusually for this trope, the Sheikah are still around and thriving, but are only on the same roughly medieval level of tech as every other race in Hyrule; this is because they deliberately abandoned their technology after being banished from Hyrule thousands of years ago, though a handful of Sheikah are working to recover their lost knowledge.
  • Luminous Arc 2 has the Navillian race, who had advanced knowledge in magic and were the ancestors of humans and witches/wizards. 4,000 years ago, a catastrophe ended their civilization and it is believed that the modern world rose from their demise.
  • Bungie is fond of this. In most likely the earliest first-person shooter example of this trope, the Jjaro from Marathon were an advanced species that created the S'pht and left a host of technological artifacts on many worlds. They are considered by many to be mythical beings, but since All Myths Are True, Durandal does everything that he does in Marathon 2 to find them. In Marathon Infinity, their technology might be what's for responsible sending the player through different points in time and space to find a way to stop an Eldritch Abomination (which they had previously sealed) from destroying the entire universe.
  • Mass Effect:
    • The Protheans are said to be this until Dr. Liara T'Soni joins your party and suggests that they probably weren't the actual precursors. It's revealed later that she's right: the real precursors are the Reapers, which are robotic Eldritch Abominations that are out for everyone's blood. Though the Protheans must have been interested in early humanity, since as the big silver unexplained ball explains; the Prothean research station on Mars would routinely abduct and mess with early humans. Mass Effect 2 eventually reveals that the Collectors are genetically and cybernetically-modified Protheans. In Mass Effect 3, there is one Prothean still alive, named Javik, in suspended animation.
    • It's also revealed that the Protheans themselves had their own Precursor race to learn from, called the Inusannon. And so on, and so forth. Each cycle leaves something behind for the next one to find. The ultimate artifact appears to be the Crucible, whose construction started millions of years ago and was continued each cycle by a new race culminating in humanity and their contemporaries in its cycle (possibly) finishing the Crucible and using it to wipe out the Reapers.
    • The "Leviathan" DLC shows that the Leviathans (true name unknown) are the first species, the original intelligent life that preceded the Reapers. The Reapers were made in their image, and they have mental domination abilities that the Reapers used to create their indoctrination ability. They were the ones responsible for creating the Catalyst, and therefore are indirectly responsible for the Reapers. Their kind was harvested and used to create Harbinger, the first Reaper. A few of them are still alive, deep under the ocean on an aquatic world, where they have been hiding from the Reapers ever since the cycles began. Shepard can find them and convince them to give their aid in the current war against the Reapers.
    • In the Refusal ending, the contemporary major races fill this role — Shepard and everyone s/he cares about get killed or worse, but the records you leave behind prove vital in a future cycle, allowing them to defeat the Reapers.
    • In Mass Effect: Andromeda, there's a series of ruins called "vaults" spread across the habitable worlds of Andromeda's Heleus cluster featuring blindingly advanced technology and tended to by strange synthetic constructs that Peebee dubs "Remnants". We know from the get-go that these were left behind by an earlier civilization for some unknown purpose; it's only late in the game that we learn they're the creations of a hyper-advanced race called the Jardann. The Jardann also created most of Andromeda's wildlife out of a test tube along with the angara, which explains why the angara don't remember their origins or most of their history. The story goes that the Jardann left behind their technology, including the vaults (which are essentially giant terraforming machines that can be manipulated to alter the environments of entire planets) for the angara to discover and use as they colonized the cluster. Whether or not they intended to make their presence known to the angara is unknown, because they aborted the project and fled Heleus centuries ago after the Scourge — a giant superweapon — detonated with the force of a large supernova and destroyed the environments of the garden worlds the Jardann had created. They weren't around to see that the Scourge, while a destructive and possibly permanent presence in Heleus, was not fatal to the angara and they continue to survive on multiple worlds despite the hostile invasion of the Kett. Interestingly, the Jardann were still in Heleus while the Andromeda Initiative arks were in flight, so all the events of the original trilogy take place centuries prior to the release of the Scourge.
  • The Orions and Antarans in the Master of Orion series fought a hugely destructive war which led to the Antarans becoming Sealed Evil in a Can, and the Orion homeworld abandoned and protected by the enormous Guardian of Orion. In the second game, you can also recruit Loknar, the Last Orion, in a powerful ship, the Avenger. Also, some planets have Artifacts property — contain ruins of ancient civilizations, which boosts local scientists' performance; races with "Artifacts World" have one of these as the homeworld.
  • The world of Mega Man Legends features robot-human creatures similar to the Reploids of earlier series. Too bad they're (mostly) under the Kill 'Em All directive of the vast computer system that controls them.
  • The Mega Man Star Force series also has the lost civilization of Mu.
  • Metroid:
    • Although they raised Samus to adulthood and had extensive contact with faraway races like the Luminoth, the Bryyonians, the Elysians, and even the Federation, the Chozo have vanished from all known space. Their entire legacy consists of decayed ruins, cryptic messages for Samus, and the odd upgrade module for her Power Suit. And, of course, the Metroids themselves.
    • The Alimbic race in Metroid Prime: Hunters went extinct long before the events of the game containing the Eldritch Abomination Gorea in the appropriately named Oubliette. They are said to have created incredibly advanced technologies, including an "ultimate weapon".
  • The Ancients from the Might and Magic universe (at least when it was in the hands of New World Computing) were creating various worlds out of the four elements and seeding them with life as part of a great experiment. Their true agenda is never entirely revealed but there are hints that they had a specific outcome in mind for most of their worlds, before the Creators and the Kreegan interfered. And between VI, VII and VIII, it was established that whatever their original agenda was, their current goal is 'Stop the Kreegans'. The settings of the games (and the novels) just happen to be in the galactic arm that was cut off from the Gateweb, and the Ancients are a bit too busy with the Kreegan to bother restoring it (especially as the cause of the breach was Kreegan infiltration of the gate network).
  • In the lore of Monster Hunter, there was an "Ancient Civilization" that was highly advanced in comparison to modern society, which was wiped out following the Great Dragon War, a devastating conflict with the elder dragons that led to its downfall. Ruins of the Ancient Civilzation are all that's left, although some of the technology from that time was salvaged and put to use by the Hunter's Guild today, including the Switch Axe, Charge Blade, and Dragonator.
  • The Myst series of games gradually reveals that the long-lost civilization of D'ni was actually located on Earth; its founders originally came from an alternate universe, but they founded a city Beneath the Earth. However, the D'ni are not the ancestors of humans; the existence of a nearly identical race on the surface appears to be pure coincidence (although the Earth was specifically chosen because it was known to be hospitable to our kind of life).
  • Pac-Man World 3 features the Ancients (possibly members or ancestors of Pac-Man's spherical race), about whose lives little is known, although their deaths comprise a well-known story 'of greed, of tampering with unknown forces, and of running and screaming and dying', to quote an in-game archaeologist. As it turns out, the Ancients were wiped out when they tried to siphon energy from the Spectral Realm (the Pac-Man universe's afterlife), which is exactly what the game's villain is trying to do in the present.
  • The Ancients from Panzer Dragoon qualify, having made many, many technological breakthroughs, most notably the many, many Towers, the drones to control them, the dragons to protect them, the monsters the Towers create to sustain the environment (or so Craymen claims), and Sestren to tie it all together. And then they conveniently vanished, leaving virtually nobody who understands any of the crap they left lying around, just that it's powerful and needs to be reclaimed. Of course, the Towers keeping the environment in its status quo means removing any factor that could be a detriment. Including humans, should they overpopulate. Thus, the Ancients are kind of the reason the series takes place in a Crapsack World. It's never really stated what the true nature of all of the above is, really, just that it's bad and you have to stop it (which you ultimately do in Saga, leaving it on a somewhat triumphant note — and then in Orta, it's implied that the consequences to the environment afterwards were hardly worth the effort).
  • Pillars of Eternity has the Engwithans, a civilization that existed thousands of years before the time in which the game is set. Their understanding of how souls function was leagues ahead of what modern animancers have learned and their ruins still dot the lands, most prominently in Eir Glanfath (amusingly the ruins imply — and Word of God confirms — that the Engwithans were inferior in many aspects of science and technology to the modern day Eora. It's just that soul science is a very flexible science with lots of applications in the setting). The Glanfathan culture is based around protecting these ancient sites, a task supposedly given to their ancestors by the ancient Engwithans, presumably to prevent anyone from discovering the origin of the gods.
  • The Azran from the Professor Layton series, most notably as the focus of Professor Layton and the Azran Legacy.
  • In Sid Meier’s Alpha Centauri, you keep finding remains of the so-called Progenitors and eventually discover that the entire planet was a grand Genius Loci experiment. In fact, it is but one of at least six and the only one still remaining. One of them went horribly wrong and wiped out the Progenitor civilization. You meet the descendants of the survivors of that race (whose degraded tech is still better than humans'), who have split into two ideological factions. Their crashed escape pods arrive with spider-like mechs that remain from the old Progenitor civilization. Unlike every other unit, they never heal damage, as that knowledge is lost.
  • The Secret World has loads of these, naturally, due to the structure of the Ages. The most obvious are the Host who literally created everything in reality by setting up the Gaia Engines, but honorable mention goes to Lilith, who created most of the monsters you encounter in the game via mad science, and the djinn, who more or less created all of the societal and structural problems in current reality by throwing a civilization-scale temper tantrum when the Host created more beings and they were just the first children instead of the only children.
  • Sentinel: Descendants In Time has the Tastans, who vanished 500 years ago. They weren't the first, as Beni lists to other types of people who came and vanished before them.
  • The as-of-yet unnamed race from Sins of a Solar Empire who built the Phase Jump Inhibitors and, presumably, the other obtainable artifacts.
  • Appropriately for a series where ancient ruins are one of the most populous level types, the Sonic the Hedgehog series is jam-packed with different precursors, most notably the Echidnas whose ancient weapons/relics/monsters set the stage for most of the world-threatening terror of the games. Interestingly enough, although absolutely all of them are shown to have possessed and/or utilized the Chaos Emeralds at some point, none of them claim responsibility for creating any of the Emeralds.
  • In the space stage of Spore:
    • You can purchase "Monoliths" which, when placed upon a planet with life at any stage of development, will cause that planet to develop quickly to the space stage, and gives you a relationship bonus with the resulting empire. Of course, after that you're free to do whatever you like to the poor guys, including conquering their cities by force and enslaving them to extract the planet's resources for your own empire's benefit.
    • Your planet can be visited by spaceships earlier in your own development, although they rarely do more than abduct a member of your pack or a livestock animal.
    • The Grox empire, which is violently opposed to your existence by default. They occupy 2400 systems around the centre of the galaxy, guarding the Galactic Core itself, which contains a robotic member of an unknown race (possibly from Earth). His name is Steve, and he gives you the most powerful terraforming tool in the game, although it is limited to 42 uses.
  • In the Star Control games, there is a race explicitly called "The Precursors" which vanished but left behind many artifacts and installations across the galaxy. The second one is notable for containing artifacts and mysteries which are not explained away with the Precursors. The third one attributes everything to them to the point of retconning previous reveals. The Precursors are heavily hinted to having created at least one of the major alien races in the game, namely the Mycon, genetically engineered fungus who were apparently designed to (or malfunctioned into a state where they) do the opposite: return lush planets to a molten and unstable state. The third game posits that they also left a race of robotic caretakers to make sure things stay orderly while they're gone, although yeah, fans really really don't much care.
  • In StarCraft the Xel'Naga, who created the Protoss and Zerg, take this role, although the reason for their disappearance is less mysterious than most, or so it seems at first. In the sequel and its associated books it is hinted that they aren't really gone, and they might well make a return before the end of Starcraft 2. Oh, and there's an Eldritch Abomination out there that hates their guts, wants to Kill 'Em All and destroy the Universe.
  • Subverted in the first StarFlight. "The Ancients" were thought to be a race that left behind several artifacts and ruins. However, it's later revealed that they are unlike any other form of life, in that they are in fact sapient crystals. Modern civilization has been using these crystals as the fuel Endurium, and in self-defense "The Ancients" began causing stars to flare, setting the game's events in motion.
  • The Star Ocean series plays with this trope. The games are filled with Out of Place Artifacts, mystical technologies such as the time gate on the apparently sentient planet Styx, and near the middle of the third game, there's even a precursor-like group of beings called the Executioners who rain havoc upon ALL the races of the galaxy. It turns out that the universe is actually a video game called the Eternal Sphere, and all the Precursor like artifacts, including the Executioners, were planted by the programmer. They're basically debugging tools and easter eggs, Styx basically works like the mother of all hearthstones. The series also has more traditional precursors such as the Nedians and Muah.
  • The Remnants of Star Ruler, leftovers of a now-fallen space empire. At the start, their artificially intelligent ships are better than anything you'll have, and even if you can blow through those, they have even better (and bigger) ones. Fortunately, Remnants are content to guard systems without acting aggressively. The Galactic Armory mod makes the Remnants much more aggressive, making them send out routine missions to cull the lesser races, using even more powerful ships than in the base game, and the Remnant will keep pace with the player, causing them to eventually start sending planet-sized ships to cull systems.
  • Star Trek Online:
    • It's quite likely the Iconians are being built up as the precursor race; the scant few times they are seen, they disable your ship completely to demonstrate their godlike power, and later they obliterate Borg cubes effortlessly. Demons of air and darkness, indeed.
    • At the end of the Deferi/Breen story arc, the Ancient Humanoids/Preservers are revived and decide to once again explore the galaxy and meet their descendants, making it one of the few cases where the Precursors come back.
  • The Chodak from Star Trek: The Next Generation -- A Final Unity.
  • Stellaris:
    • The galaxy features a small number of Fallen Empires, immensely-advanced civilizations that control only three systems and mostly ignore the rest of the galaxy, unless someone presses their Berserk Buttons. Their remaining fleets will wipe the floor with anything short of an endgame flotilla, but they won't expand or replenish their numbers... unless they become Awakened Empires.
    • Some of the first anomalies your science ships discover will start an event chain to study the ruins left behind by one of five different precursor civilizationsnote . The Vultaum Star Assembly, a race of worm-like creatures, fell victim to a species-wide Suicide Pact 12 million years ago. The Yuht were a socially-stagnant and xenophobic race that was defeated by their enemies six million years ago. The multiracial First League collapsed into infighting two million years ago. The rulers of the Irassian Concordant died to a plague spread by their angry vassals one million years ago. The Cybrex led a Robot War against the rest of the galaxy a mere six hundred thousand years ago before having a Heel–Face Turn and going into hiding. In all cases, completing the event chain will reveal the location of a Precursor empire's home system, which typically has planets with substantial research or resource production, or even a ruined Ring World Planet you can repair much later with the right technology and resources.
    • You can become a Precursor — benevolent or otherwise — when you come across pre-space flight or pre-sapient species on other planets in the galaxy. You can establish an observation post over a world, enlighten the natives until they're ready to leave their home system, and keep them as a protectorate, perhaps to be integrated into your multicultural empire. Alternatively, you can crush their primitive armies with your invasion force and purge the planet of its original inhabitants, or Uplift a species just so you can use your mastery of genetic engineering to make them a docile, delicious Slave Race.
    • The Ancient Relics expansion added two more races, the Baol, an isolationist and slow-moving hive mind who may be responsible for most or all of the Gaia Worlds you encounter. They were wiped out by the Grunur and you can find the last member of their species, and use the information found in its corpse and suspended animation chamber lets you create new Gaia worlds and a non-hivemind version of them. The other species, the Zroni were the masters of and possibly the first species to unlock Psychic Powers. They discovered The Shroud, and discovered they could use it for transportation, draw upon it for power, and gain Reality Warper powers by living in it. Eventually however, it was discovered that to fuel manipulating the Shroud like that, they made the galactic core black hole bigger to the point where it threatened to annihilate the entire galaxy. The Saviors thought this was a good reason to not do it, while the Divine didn't care. The resultant civil war raged on for an untold number of years, with the Saviors more numerous and the Divine more powerful, the resultant conflict leading to the rise of the gods and monsters of the Shroud. Eventually, a Savior discovered that they could render themselves down into dust containing all the psi power a Zroni could express in its lifetime. The conflict was then resolved by all but one of the Saviors rending themselves down into Zro dust for the single remaining one to consume and unleash sufficient power to wipe out the Divine, leaving the Zroni extinct and trace amounts of the highly addictive dust scattered across the galaxy.
  • Much of the plot of Subnautica is fixing the mistakes of the Precursor Race, who infected much of planet 4546B with a bacteria, that was devastating their race, and implied to have driven it to extinction, entirely accidentally when setting up a research station there, to find a cure. It's up to you to finish what they weren't able to, to save your life.
  • The Super Robot Wars series mention several names. Shin Super Robot Wars had the Mu, who are aliens in this game. The Super Robot Wars Alpha setting has the "First People", Super Robot Wars W has the "E's" and Super Robot Wars K has the "Crusians". Some titles like Super Robot Wars Destiny or Scramble Commander 2 have relics left by a nameless race. This is a source of Epileptic Trees in the mythos.
  • Sword of the Stars Morrigi are actually still around — and very smug about it — but until the last expansion, they had to quietly limp into hiding thanks to the efforts of the rather less nice variety of Precusors. And then the Liir had to go and kill off the bad kind of Precursors, allowing the Morrigi to return. Still worse, the pre-release information for the sequel suggests strongly that the Liir didn't finish the job. In fact, said evil Precursors are actually insane Liir Elders with incredible Psychic Powers, not a separate species. So yeah, the Liir have been lying to everyone.
  • The dragons, giants, and elves from Tears to Tiara and Tears to Tiara 2, whose civilizations were destroyed by the heavens, but evidently a not insignificant population of each remains. The more powerful lineages of these races are worshiped as gods by humans.
  • The Thief series has the long-gone civilization from the ancient ruined city of Karath Din (a.k.a. "The Lost City"), which is known only under the colloquial moniker "The Precursors". The environments of their ruins and various readables imply that at least part of The City's society and technology has very early roots in the survivors of this bygone civilization. Most of the details on the reasons behind the Precursors' demise are deliberately left open to speculation, given the series' elliptical approach to revealing the history and inner workings of its setting. One of the more notable facts revealed is that the Precursors had much more sophisticated technology than does the present-day civilization, in a way. To quote the Keeper faction's opinion on the Precursors :
    When we looked at the relics of the Precursors, we saw the height civilization can attain.
    When we looked at their ruins, we marked the danger of that height.
    — from the Keeper Annals
  • Tyranny features the Spires (massive towers) and the Oldwalls (enormous walls, so long as to separate entire nations, infested by hostile magical entities called Banes) as relics of some older, gone civilization. In the Tiers, the region of Terratus where the game takes place, that civilization is called the Older Realms (hence why the Tiers call themselves the Younger Realms) — most of the exposition on them is from Tiersfolk so that's the only name mentioned. Bastard's Wound reveals the Older Realms had some form of connection with the Beastwomen by the presence of Beasts on ancient murals within an Oldwall, although it is ambiguous what the exact relation was.
  • Valkyria Chronicles has the Valkyrur, a now extinct (mostly) race who learned to weaponize Ragnite and who possessed weapons with seemingly magical abilities that can't be replicated by modern science. Although not the first humans, all non-Darcsen inhabitants of Europa are descended from them and they are credited with starting the proto-civilization from which all others on the continent grew. Many people even worship them as gods. It turns out they were kind of dicks.
  • Vega Strike Back Story has the Ancients, "Those Who Have Only Names" (species Ancients' records mentioned) and later "Alphan and Betan". They left lots of ruins, their "lab monkeys" who now rob blind everyone else for access to the best of said ruins, and... the nano-plague that breaks nanomachines, but ignores most lifeforms and non-construction nano scale devices.
  • Warcraft:
    • The lore features the Titans, who went around ordering many of the worlds in the Warcraft Universe, specifically those with a World Soul, or nascent Titan. They would leave behind stone races to watch over the planet, though the ones on Azeroth mostly fell to the curse of flesh that turned them into either their modern version (Earthen to Dwarves) or a step before (Iron Vrykul to normal Vrykul, birthing humanity). One of these titans, Sargeras, would eventually become one of the main villains of the series and lead an army of demons to destroy the works of his brethren in hopes to prevent the void from corrupting one of the world souls.
    • The Old Gods once ruled over the entirety of Azeroth with their Faceless and Aqir servitor races. Their Black Empire was eventually shattered by the Titans and the Old Gods and their servants were bound in prisons. Remnants of their rule remain scattered across Azeroth, below its surface, and within Ny'alotha, the nightmare realm overlying reality.
    • Also fitting this, yet to a less extent, are the ancient Night Elves: They were ruling the whole super continent, fought off any competing race and had access to unlimited magic — until they attracted the Burning Legion, which resulted in the Sundering, destroying most of their race, a huge part of the continent, and all of their magic-based civilization. Their ruins are still everywhere to be found and, of course, contain most powerful artifacts.
    • Even before the Night Elves were the trolls who, while being less advanced than most other races, built gigantic cities and temples that were abandoned after the Night Elf takeover. Modern trolls live in these ruins today, worshipping their ancientry, but unable to achieve their greatness — the ancient trolls are their own race's Precursors.
  • Warframe features the Orokin, who created the Tenno to fight a race known as the Sentients in the Great Offscreen War. The Grineer pursue Orokin technology in their quest to conquer the solar system, while the Corpus are more interested in selling the tech for profit; the Tenno don't particularly want either side finding anything. If the Stalker's Codex entry is to be believed, the Tenno were the ones who killed off the Orokin in the first place. Some of the Orokin's towers escaped into the Void, where their technology was preserved, but others were left behind to become filled with the Infested.
  • Wild ARMs: On Filgaia a race of Precursors left behind a vast array of Lost Technology. In the anime series Twilight Venom it was revealed that the precursors were from Earth, but left due to the annoyance of Random Encounters.
  • Wing Commander: Privateer: The Steltek were Precursors of the neglectful variety, though they did make an effort to clean up after themselves once made aware of the problem.
  • X: The Ancients built the games jumpgate network and currently exist as a gestalt consciousness who have surrendered their individuality to become in effect a single entity. They use another precursor race, the Sohnen, as an intermediary to the young races. Their objectives are to preserve intelligent life throughout the universe, retard the heat death of the universe, and to become Type VI on the Kardashev scale, a civilization one that uses the energy of several universes and can alter the physical laws of universes. Basically, gods.
  • Xenoblade Chronicles X: The resident Precursor race was known as Samaar, who are said to have come into this universe from someplace else soon after its creation. The civilization they founded, the Samaar Federation, still exists in the present day, and is stated to control a radius of over 6 million light-years (which means it spans many galaxies, including the Milky Way and Andromeda). The game is rather ambiguous on whether the original Samaarians are still around, they're never directly said to have died out or disappeared, but everyone speaks of them in the past tense, and humanity is revealed to be their direct biological descendants.
  • The Eldeen in the Ys series.
  • A Downplayed example in Minecraft. While exploring the world it's possible to come across abandoned structures like abandoned mineshafts, underground dungeons note  and strongholds, jungle and desert temples (heavily implied to be funerary structures) and underwater ruins or shipwrecks. It's not clear who built them, or what happened to them, but the overall level of technology is not too different from what the player can construct (none of the blocks used are particularly difficult to craft or obtain through normal gameplay). The only really unique thing they built that can't be replicated without cheats is the End Portal in strongholds.
    • More complicated are the Ocean Monuments, which are underwater and very different in construction from the other generated structures. They're built from "Prismarine", a material that can only be obtained by killing the Guardian creatures that live in the Ocean Monuments.
    • The Nether also appears to have had its own Precursors, and once again who they were and what happened to them is not clear.
      • Introduced in version 1.0.0 were the Nether Fortresses, who are completely derelict if not for Blazes spawning from Blaze spawners and patrolling the corridors (and after 1.4.2, Wither Skeletons now spawn there too). The fortresses are little more than enormous bridges, corridors and empty rooms, making their actual intended purpose unclear.
      • Damaged and inactive Nether portals exist, both in the Overworld and the Nether, and they can be repaired and reactived. Overworld variants are surrounded by Netherrack and lava and chests with gold items (favored by the Piglins of the Nether). It's not clear if these portals were built by an Overworld civilization to travel to the Nether or vice-versa.
      • Burried deep in the Nether are rare "ancient debris" that can be smelted into "Netherite scraps" and further alloyed with gold to produce "Netherite ingots" that can upgrade diamond gear. There is no way to directly produce this metal, so anyone wanting a sweet Armor of Invincibility or an Infinity +1 Sword will need to salvage the ancient debris.

  • In Jack (David Hopkins), a Furry Webcomic, the furries that currently live on Earth are the descendants of furries created in a lab by humans, making humans the Precursors. They were wiped out in a war started by the first furry, Jack. The furry version of the United States government knows about furrykind's origins, and is (probably wisely) keeping it a secret.
  • In Unity, the creatures living in the ship are all distant descendants of Earth life. Humans built the ship, but disappeared long ago.
  • In Homestuck, universes are created by sessions of Sburb. And the trolls created ours.
  • In Impure Blood, they are the Ancients. Roan is a Half-Human Hybrid descendent. The Watchers think they are evil.
  • The Cyantian Chronicles have at least two species, the Rumuah who created the Cyantians as servants and heirs, than died out from a genetic disease. And the "Squids" who came along centuries later and enslaved the Cyantians, until Alpha Akaelae led a successful rebellion and wiped them out.
  • In Iothera, the ancient Seb attained spaceflight, then apparently vanished.
    Cassandra: We still don't really know who the Seb were — or how they built the Red Towers — or why they were on the moons — or even what all the stuff they left behind does.
  • Harbourmaster has the Qohathoth, who were tormented by the loneliness of being the only sapient lifeform in the galaxy. Although their quest to find other species to befriend (the Yogzarthu didn't want friendship) led them to journey into other dimensions before humans could become spacefarers, they terraformed many other planets to be Earth-like in hopes of sparing humanity that same pain. Ironically, they made the terraformed planets too paradisial; nothing was subjected to the kind of pressures that would select for sapience, until a comet strike altered Tethys's climate, allowing the entomorphs to evolve to sapience.
  • Drive: The Sill were the most advanced race the galaxy has ever known and the only one to ever reach a type 2 Kardashev civilization. They ruled the galaxy for over 20,000 years undisputed, they played crucial roles in the history of almost every species they encountered and their technology reached levels that modern societies can barely dream of. All that's left of them now are some impressive ruins and some slowly dying monks.
  • Awful Hospital has the Old Flesh and, to a certain extent, the Parliament of the Old Flesh. Apparently, at the beginning of all things, all of existence contained the Old Flesh, and nothing else. At some point, the Old Flesh became infected, and as that infection devoured the Old Flesh, it gave rise to all other concepts in the Range. The Parliament are the remains of the Old Flesh itselfnote , and they seek to use their own infection to eliminate all concepts that arose from the Old Flesh (i.e. 'literally everything') and re-create it in the form of the New Flesh.
  • Leaving the Cradle: The Ancients had unimaginably powerful presence in the galaxy some milions to billions years ago, changing planets and star systems so they could be able to support life, leaving behind artifacts that enabled the civilizations that came after to discover FTL and other fancy tech, and apparently they are even responsible for the very possibility of FTL travel itself, with strong implications that they tampered with the fundamental physical forces of the Universe on a whim, and before that you could travel only as fast as Einstein would allow you. Then they just disappear without a trace, sans for some artifacts or occasional astroengineering project.
  • Schlock Mercenary: There's a scattering of ruins from extinct civilizations, but not as much as one would expect considering Fermi's Paradox. The oldest race around, the Gatekeepers, are only a million years old. Quite old, to be sure, but young compared to the galaxy. As Petey put it, "If it's this easy to be immortal, where are all the adults?" They were all wiped out due to a variety of reasons over the eons, top of the list being the long-gun, a weapon that can fire anywhere in the galaxy from anywhere in the galaxy as long as you have targeting coordinates. The few survivors of these eras went completely off the grid, hiding their stars in massive superstructures or constructing spaceships the size of planets and running dark. The reason the Gatekeepers were still around (though they hid the bulk of their people in Dyson Spheres) was as part of a plan to halt this cycle by restricting galactic travel to a Portal Network instead of receiverless teleportation, in the hopes that this would prevent the rise of the long-gun. It worked for a while, and the current galactic civilization has lasted longer than most previous ones, but eventually the Gatekeeper stranglehold was broken and things continued on the same path as before. It eventually turned out that many, perhaps even most, of them weren't wiped out at all; all civilizations reach a point where immortality is easy and it's just safer in the long term to move your entire civilization into gas-giant sized spaceships and go dark beyond the galactic rim. Once the galaxy figured out how to detect them they discovered that there's so many of those ships that by conservative estimates surviving precursors outnumber what they had thought was the population of the galaxy by fifteen orders of magnitude.
  • Outsider: Several ancient empires rose and fell over the history of local space, impacting its development to various degrees. They are discussed in the side blog at some length.
    • The earliest know civilization was active sixteen million years ago, and is known only from a large number of worlds bearing extensive cratering and having undergone mass extinctions at that time. Modern scholars believe this to be the testament of a devastating war between otherwise unknown powers, but nothing's known for sure.
    • The Fenrias civilization arose long after these conflicts, but still over a million years back. It spread through local space and either subjugated or ignored the primitive ancestors of the modern sapient species. The Fenrias split into multiple factions early on and warred extensively against each other, eventually diverging into numerous distinct breeds. Two modern-day species, the Delrias and Morat, are descended from Fenrias populations that survived the fall of their empires.
    • The Dreiman were small — lapdog-sized — but highly advanced aliens that arrived about a million years in the past from outside of local space and quickly wiped out the Fenrias nations, although a few fringe groups held on on the edges of their territory. They rarely settled planets and mostly remained in orbital stations, but engaged in extensive planetary and biological engineering — they seeded and terraformed multiple worlds, many of which remain habitable into the present, and seemingly uplifted many of the local pre-sapient species.
    • Around 500,000 years back, the Dreiman suddenly vanished and the remnant Fenrias nations all collapsed, to be replaced by the Soia. They were more advanced than the Dreiman and, like them, seem to have come from outside known space. They traveled in massive and heavily armed artificial moons that they used to enforce their rule and created numerous genetically engineered species, referred to as the Soia-Liron species; most were hyper-efficient food plants and animals, which are still found on multiple worlds, but at least five sapient species are known from Soia sites and may also have been created in this manner — the ancestors of the modern Barsam, Neridi and Loroi and two now-extinct species. The Soia are thus believed to have been a multi-species civilization, although whether these species were naturally occurring ones from a single world, artificially created or a mix of both, as well as wether any of these were the "true" Soia, isn't really clear. The Soia empire collapsed 275,000 years ago, seemingly in a devastating conflict that subjected every settled planet to devastating orbital bombardment and caused every sapient species to regress to the stone ages — galactic civilization is technically still climbing out of these dark age.

    Web Original 
  • Open Blue has the Iormunean Imperium, a once glorious empire that prospered thanks to their goddess. When a new religion started encroaching on the fringes of the empire and the local Church Militant did nothing to stop its growth, aforementioned goddess turned her back on them while they were in the middle of a war with invading barbarian hordes. Suffice to say, it led to their destruction, and their blessed weapons and artifacts being scattered across the world for the present nations to search for.
  • In Orion's Arm abandoned ruins with highly advanced technology are considerably more common than living aliens with technology even close to the level of Terragen civilization. Many find this somewhat disturbing.
  • The Whateley Universe appears to have at least two Precursor races — the Telemap, whale-like beings that explored the Universe through Astral Projection, followed by the humanoid Isokist, who did so in person and colonized several galaxies before they began experimenting with the dimensions outside our Universe, which quickly led to them being nearly annihilated by Eldritch Abominations. Somewhere along the way, one Isokist Mad Scientist created the Scourge — a sentient Ultimate Weapon in the form of a female Isokist — as a last-ditch defense against the invaders. The rest is hidden in the mists of time, but it is known that the Scourge survived, until eight billion years later it merged with a human teenager, becoming the character of Tennyo.
  • Beyond the Impossible: The Drylon disappeared five billion years ago, but they left behind technology so powerful that the gods will do anything to put their hands on it.
    Five billion years ago, the Drylon disappeared. The legend goes that the Drylon waged war against the universe and lost. They lost so bad that hardly anybody remembers them.
  • SCP Foundation:
    • SCP-1000 reveals that Bigfoot, Sasquatch and Yeti were this to us. They created a great civilization millennia ago, had a population in the tens of billions, and mastered Organic Technology that even modern Foundation researchers can't comprehend. Ancient humans were to them what Great Apes are for us: fenced-in endangered species that are granted protected status, but still exploited for various purposes. Eventually, humanity managed to acquire some of their bioweapons and rose up, slaughtering most of their species in a single day and imprisoning the rest in their own minds, then turning it on ourselves to eradicate the memory of them. And the modern remnants of the species have been slowly regaining their mental capabilities...
      You think bigfoot is funny because we want you to think bigfoot is funny.
    • SCP-2932 also reveals that humans and bigfoots are Not So Different. Not only did the Bigfoots have their own facilities for containing anomalous objects, but they also overthrew the ones that came before them.
    • SCP-4000 reveals more details about the precursors who came before the bigfoots, otherwise known as the Fae. They were largely similar to humans, but with an obvious allergy to iron. Not only were they overthrown by the bigfoots, but the Foundation committed genocide against them after the War with the Factory; SCP-4000 is basically a refugee camp in another dimension, where they harbor a bitter resentment against the Foundation.
    • SCP-4001 is a massive sentient library that chronicles the lives of every human being that has ever existed, numbering at least 120 billion in total and with new ones created every minute; the oldest ones stretch back 75,000 years. Burning a book or tearing out the first pages results in the person it's about being erased from existence. Beneath the floorboards is a huge layer of ash, the last remnant of the ancient Homo nobilis civilization after they wiped themselves out in a nuclear war 70,000-80,000 years ago. The library asked the last Watcher to burn the entire collection of books so that the damage could be undone, which resulted in them being wiped from reality
    • SCP-2117 is an anomalous spaceship used by the Foundation against possible extraterrestrial threats. If the age of the ship is to be believed, the Foundation has existed even before life did.

    Western Animation 
  • In Gargoyles, the First Race, while never directly referred to in the show, has been revealed by Greg Weisman to have preceded the Three Races.
  • In Shadow Raiders, a mysterious race created world engines (if not the planets themselves). This allowed the natives to not get consumed by the Beast Planet. One has to wonder who they were and why they did it.
  • In Star Com The US Space Force, Mars was once inhabited by an advanced alien race called the Builders. The Builders are long gone by the time humans colonized the solar system, but they left behind ancient cities buried under the Martian dunes—cities which are still functional, and not entirely abandoned.
  • Once Upon a Time... Space (the sci-fi and prevalently entertaining installment of the Il était une fois... educational series) has at least two of these races. The two confirmed races were at war with each other, with one composed by human lookalikes (some of which landed on a primitive planet inhabitated by other Human Aliens and taught them better science before nuking them for attacking them in order to steal their technology) and the other implied to have normal-sized starships capable to blow up a planet (the asteroid belt is believed having been one such planet, where this race believed some of their enemies had taken refuge). The inhabitants of Atlantis are a subgroup of another race of Human Aliens, known for having interbred with Earth humans (with Psi's Psychic Powers implied to be the result of descending from them) and who are possibly connected to the first group, and a fourth, who actually appear, is a Sufficiently Advanced Aliens that may be the same who sent the Atlanteans on Earth and have some connection to Psi. The protagonist themselves become this from time to time, acting as teachers to less developed species.
  • She-Ra has the First Onesnote , who integrated the planet of Etheria with their technology.

    Real Life and Mythology 
  • Homo erectus. They inhabited Africa and most of Eurasia for over 2 million years, and are believed to be the first species of human, and the first in Earth's history to make complex hunting tools, control fire and cook their food, and (it's debated) to have symbolic customs, such as burial rites. They were so widespread that they gave rise to many different subspecies of humans, including Homo heidelbergensis, the ancestor of both modern humans and Neanderthals. There are ongoing debates about whether some known groups of early humans are actually Homo erectus or a subspecies descended from them.
  • An Older Than Feudalism topic is Atlantis:
    • It was first recorded by Plato, and may be an allegory he dreamed up to serve his conception of a utopian society by providing it with an enemy. While the Atlantis in Plato's story is explicitly a fiction, the question is whether the idea was original or making use of an existing legend. Another possibility is that the legend of Atlantis grew out of stories about the civilization on Bronze-Age Crete, long before classical Ancient Greece. Another candidate is Santorini, which was once Thera, an island city-state in the Aegean Sea, very advanced compared to its neighbors, even possessing indoor plumbing, but erased (along with the middle of the island) by a volcanic explosion about 36 centuries ago.
    • Theories on the origins of Atlantis are far ranging and include everything from islands in the Mediterranean to the continents of North and South America. Proponents of the latter theories, however, are not taken seriously because no such civilisation could have existed and left zero trace or record of its existence whatsoever.
    • The story includes a second set of precursors in the ancient predecessor of Athens (in another location in Greece which no longer exists), which embodied all of the traits of Plato's ideal state. After the war between the two ended in victory for Athens, it was also destroyed in the same calamity as Atlantis. Oddly enough no-one ever seems to believe that this culture was real, even though it gets much more focus in the story and the claims about it are much more modest.
  • Medieval and Renaissance Europeans often thought of the Roman Empire this way, perceiving Rome as a great, civilized and intellectually superior culture they strived to emulate. The ruins of Roman buildings and infrastructure still dot the countryside to the modern day, and many European towns and cities were built among the ruins of Roman settlements — which, in many cases, were much larger than their Medieval successors and more comparable in size to their modern iterations. The Greeks were held in a similar sort of awe, and Greek and Roman writings were held as a sort of final authority in scientific matters: suggesting that modern people could equal or surpass the Greeks and Romans — "the Ancients", as they were known — in art or science was seen as ridiculous. Adventurer Archaeologists in Central Asia often thought of the various Silk Road Civilizations this way, too. Similarly, the early Iron Age civilizations of Greece, Anatolia and Mesopotamia which emerged after the Bronze Age collapse and subsequent "Dark Ages" viewed their predecessors as such, most notably the awe in which the Hellenic Greeks held the Mycenaeans.
  • The ancient city-state of Teotihuacán played this role for the Mesoamerican civilizations, such as the Aztecs who arose nearly 1,000 years after its fall. It was one of the great powers of its day, dominating several of the nearby Maya cities and its influence covering much of Mesoamerica; it even had what appear to have been apartment buildings. It had considerable influence on the development of most nearby cultures, including the Maya, and was seen as a holy place by the Aztecs, who believed it to be where the world had been created.
  • One serious solution proposed for the Fermi Paradoxnote  is that we humans are the Precursors — we are the first intelligent race, at the very least in this galaxy or this part of it. Or at the very least, our elders are too recently emerged to have expanded universe-wide yet. If this is true, uncounted billions of civilisations are depending on us not nuking ourselves or sinking back to pre-industrial levels. No pressure.
  • This is also a favorite theme with Conspiracy Theories, where the role of the Precursors is filled by ancient, vanished technological empires like Atlantis or Lemuria, or by alien visitors who founded humanity's ancient civilisations.
  • The mysterious Bronze Age Indus civilization reached levels of technology, health and urbanism not reached again until the Middle Ages (in India) or later. For just a bit of perspective, the ancient city of Mohenjo-Daro had a better sewage system than nearby Karachi does today.
  • Ancient Phoenician-influenced Sardinia could count. They had iron weapons, conquered Italy and southern France, and had huge stone fortresses long before the middle ages. The end of the Sardinian civilization also coincides with an eruption of Vesuvius, plus the geography and political state of the island could match the description.
  • Any ancient state ended up either as this or a Vestigial Empire. The best examples would be the six "cradles of civilization" where writing, urbanization and features of modern society first developed independently of older civilizations: Mesoamerica, the central Andes, Ancient Egypt, Mesopotamia, the Indus River Valley and China.
  • According to Hindu Mythology, there were several lengthy ages before the current age, the Kali Yuga: the Satya Yuga, the Treta Yuga, and the Dvapara Yuga, each one being shorter than the previous era. Humanity begun in the Satya Yuga as being very devout and righteous under the rule of the gods, before declining in subsequent ages, and then starting over at the distant end of the Kali Yuga. Among the technology used during the previous ages included the vimana, a flying palace or chariot used by powerful beings such as Ravana.
    • Likewise, some Buddhist scriptures mention of a primordial king known as Mahāsammata, who was selected by his people as their ruler as there were no others around them. He was succeeded by several dynasties of chakravartins, universal monarchs who utilize treasures such as the 'chakraratnaya' wheel that allows them to travel across the sky to other continents. As the ages progressed, the chakravartins' rule broke down, and humanity declined in morality and lifespan from thousands of years to nearly a hundred.
  • Theosophy features Atlantis (Precursor to Egypt and Mayan culture), Hyperborea (North Pole, precursor of europeans and asians), and Lemuria (precursor to the african cultures and the lower castes of india). Later authors like David Icke and Drunvalo Melchizedek added aliens to the mix.
  • The Silurian hypothesis (name inspired by Doctor Who), posits that there could have been an industrial civilization on Earth millions of years ago, and how it could be detectable in this era by accounts of chemical and climatological global changes recorded on the rock strata.

Alternative Title(s): Precursor, The Precursors


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