History VideoGame / Outerplane

* WhamLine: In Season 2's Normal Mode, Alpha casually mentions that [[spoiler:the recent fiend war is actually the second war fiends have waged, the first having happened during Ivanez I's time]].
* WizardingSchool: Magnolia Magic Academy is an academy city made [[MagicalSociety by mages and for mages]], having been built on an Ark-class dungeon that floats up somewhere in the stratosphere. The curriculum there is essentially no different from colleges and universities, only with a lot more magic and its associated dangers, a prevalent sense of superiority over non-mages, and the amoral obsession of those deep in their research.

* JigglePhysics: Almost every girl with a noticeable bust is bound to make their chests flounder in motion.

** The world where K comes from appears to be [[CrapsackWorld an Earth that has faced an apocalypse]], where public order has broken down as humanity faces an alien threat called "irregulars", parasites that can take over people to infiltrate humans and mutate into building-sized monsters. From the sounds of it, it's like ''Literature/RebuildWorld'' meets ''Manga/{{Parasyte}}''.
** There is an Earth that at least matches our Earth in terms of timeline and normality, where there's no big threat or special feature, which is where Earthlings like Jihoon Kim, Vera, Naru Kang, and Hanbyul Lee come from. It's unknown whether it's the exact same Earth though, given that Vera played a VRMMORPG, the kind that our Earth has yet to develop.

** Stella's [[spoiler:Quirk and the true mastermind behind K and Tanya's betrayal]]. There are several times during Season 1's Normal Mode when her capabilities are remarked on, most notably Laplace mentioning the many times the princess dodged assassinations and made that bordered on foresight, and Veronica's suspicions about the drastic change in her personality from a loving princess to a sadistic tyrant. [[spoiler:Stella's Quirk is revealed in the end to be future sight, but it's not until Hard Mode, where more damning clues such as Lisha seeing two different types of mana in "Stella" that it's confirmed that an Earthling spirit has taken over her body.]]

* ShroudedInMyth: There are a number of mysteries surrounding the Scientific Inheritance, especially with dungeons being closer to sci-fi labs and who or what sort of {{Precursors}} were behind them. These get elucidated by the oldest automatons; in Season 2's Normal Mode, Alpha hints at the dungeons being something else. Iota's side story [[TheReveal elaborates on some of this]]: [[spoiler:the "dungeons" were actually ships that had fallen during the war between Alpha and Iota when the former sided with Ivanez I and humanity, with Terminus Isle being a result of their final battle.]]

** In a meta sense for both the main story and gameplay, K's team grows to have himself (Defender), Eva (Healer), Lisha (Mage), and Snow (Ranger). Now if only there was a Striker, and then there'd be a complete set, but the four-Hero team limits would have prevented that. [[spoiler:In Season 1's Hard Mode, K gets a Striker, though unexpectedly, it's Idith who joins in place of Lisha.]]

** A number of playable Heroes in the main story [[spoiler:die by the end of Season 1's Normal Mode, the death toll counting Iris, Francesca, Maxwell, and Stella. It's excused when the time regression happens in Hard Mode, not only bringing back everyone to life but keeping them alive after it's end, but Francesca ''still'' dies and remains playable]].
** It's possible to [[MirrorMatch pit Heroes against themselves]] in battles.

* LostTechnology: "Scientific Inheritance" is a catchall term for technology that is beyond Mirsha's level, often found in dungeons where its cores create monsters called "guardians", who slay any intruders to be converted into antimatter that go into powering said cores; dungeon cores themselves have broad uses in order to grant a person's wishes the best they can, including empowerment, conjuring matter (and cloning), and full-body transformation. Application of this technology so far has been very limited, such as people contracted to dungeon cores like Jihoon and Veronica, Magnolia Magic Academy having been built on a dungeon and reconfiguring a portal network to use mana, Maxwell Libragear turning himself into a cyborg. Regardless, no one really knows how or why they're there, let alone who made them.

* StandardFantasyRaces: So far, there's [[HumansAreAverage humans]], [[OurElvesAreDifferent elves (with sub-races based on different environments)]], [[LittleBitBeastly demibeasts]], [[DemonLordsAndArchdevils fiends]], and [[RidiculouslyHumanRobots automatons]].

The combat gameplay shares much in common with previous Smilegate-published game ''VideoGame/EpicSeven''; on the field, you control four heroes at a time from a roster of collectable characters rolled from the Recruit section, having the option to switch out heroes before battles according to the situation. Battles are conducted as TurnBasedCombat, where character initiative is dependent on a speed stat and is shown on a VisualInitiativeQueue, and they take turns using a skill until one side is depleted of HP. Each hero has three skills, the first being a basic attack, the second a skill that can be either active or passive, and the third as a game-changing ultimate skill, the latter two having cooldowns after use. Of note are two systems that can be activated at the player's discretion: Skill Burst, which can boost a hero's skill up to three levels that requires Action Points to use, and Skill Chain, which causes all your heroes to attack all at once, causing effects that vary between heroes and is best used strategically to trigger timely boss staggers.

** Sacreed is [[TheTheocracy a theocracy]] set in an archipelago, its citizens being believers in a single true god, Nepos. It's fairly reminiscent of UsefulNotes/ThePapalStates.

** Sacreed is [[TheTheocracy a theocracy]] fairly reminiscent of UsefulNotes/ThePapalStates, its citizens being believers and priestly devotees in a single true god.

** Assuming that K is the stand-in for the player, there's a lot of cases where recruited heroes wouldn't make sense being around him, let alone being there in person chronologically. [[spoiler:Francesca]] for example is an antagonist who even dies in the story and yet remains available as a playable hero, and busy people like Maxwell, the dean of Magnolia, or Knight Commander Veronica would have to have inexplicably free time tagging along with K. Of course, for the sake of gameplay, these are AcceptableBreaksFromReality.
** It's possible to [[MirrorMatch pit heroes against themselves]] in battles.
* GreatOffscreenWar: The "war against the fiends" is as it sounds, in which the White Falcon was the leader of the forces allied against the fiends and whom K had fought against as the kingdom's hero. After Stella sacrificed K to the dungeon core, she managed to defeat the fiends and pushed them back to their territory, giving victory to the alliance, though the scars of the war remain fresh for everyone involved.

** Strikers are your primary damage dealers. They gain a determined amount of AP from attacking enemies with any skill.
** Mages have skills that tend to inflict debuffs and target multiple enemies. They earn AP by casting skills, the amount differing based on the skill used.
** Rangers boast a high Speed stat that lets them take initiative ahead of allies and enemies. They gain AP upon their turn
** Defenders take the brunt of the damage all other types can't take, sometimes having a skill to taunt enemies, defensively buff their team, or hamstring enemy attack power. They are given AP whenever they are hit by an enemy attack.
** Healers help their teammates recover from damage, though the varied Healers specialize in different buffs and debuffs to provide team stability. They gain AP whenever an ally takes damage.

** [=Ful.Mi.NATION=] is a country set in an icy land, boasting the most advanced science-based technology compared to White Falcon and Sacreed, being a blatant mirror of [[GloriousMotherRussia Russia with all the stereotypes associated with it]], especially patriotism.

* AnAdventurerIsYou: Heroes are classed into one of five Battle Types that not only determine team roles, but also how they gain AP for Burst Skills: Striker, Mage, Ranger, Defender, and Healer.
** Strikers are damage dealers, sharing the role with Mages. They gain a determined amount of AP from attacking enemies with any skill.
** Mages are damage dealers in the same vein as Strikers, though they earn AP by casting skills, the amount differing based on the skill used.
** Rangers primarily deal damage, though they boast a high Speed stat that lets them take initiative ahead of allies and enemies. They gain AP upon their turn

** Healers help their teammates recover from damage, though the varied Healers specialize in different buffs and debuffs. They gain AP whenever an ally has taken damage.

* ArbitraryHeadcountLimit: You can only have up to four heroes in a squad. This is the same for normal enemies, excepting singular massive raid-style bosses.

* ElementalRockPaperScissors: Each hero has one of five elements: Fire, Water, Earth, Light, and Dark, where heroes with an elemental advantage over an enemy's element deals more damage and takes less from said enemy--Fire beats Earth, Earth beats Water, and Water beats Fire; [[MutualDisadvantage Light and Dark deal more damage to each other]]. [[ColorCodedElements Elements are identified by color]], Fire being red, Water blue, Earth green, Light yellow, and Dark purple.

* TrappedInAnotherWorld: A common, though unexplained phenomenon observed by Mirshians is the appearance of Earthlings, people who are transported over from their worlds through mysterious means. These methods known so far are [[SummoningRitual summoning]] (an intentional act like Stella summoning K), transference (a random transportation), [[ReincarnateInAnotherWorld reincarnation]] (rebirth in another form with memories intact, Vera and Valentine being examples) and dispossession (the Earthling's soul replacing that of a deceased Mirshian [[spoiler:or sharing it like in Stella's case]]). Earthlings also gain a power called a [[IsekaiBonus "Quirk"]] as part of the transportation process.

When the team does retrieve the core, Stella hugs K in gratefulness--only for her to fatally stab him in order to activate the dungeon core, followed by Tanya being cut down by Francesca. As the laughing princess's true colors were revealed, K swore [[{{Revenge}} vengeance]] as he fell into the dungeon's depths.

The combat gameplay shares much in common with previous Smilegate-published game ''VideoGame/EpicSeven''; on the field, you control four heroes at a time from a roster of collectable characters rolled from the Recruit section, having the option to switch out heroes before battles according to the situation. Each hero has three skills, the first being a basic attack, the second a skill that can be either active or passive, and the third as a game-changing ultimate skill. Of note are two systems that can be activated at the player's discretion: Skill Burst, which can boost a hero's skill up to three levels that requires Action Points to use, and Skill Chain, which causes all your heroes to attack all at once, causing effects that vary between heroes and is best used strategically to trigger timely boss staggers.

* LostTechnology: "Scientific Inheritance" is a catchall term for technology that is beyond Mirsha's level, often found in dungeons where its cores create monsters called "guardians", who slay any intruders to be converted into antimatter that go into powering said cores; dungeon cores themselves have broad uses in order to grant a person's wishes the best they can, including empowerment, conjuring matter (and cloning), and full-body transformation. Application of this technology so far has been very limited, such as people contracted to dungeon cores like Jihoon and Veronica, Magnolia Magic Academy having been built on a dungeon and reconfiguring a portal network to use mana, Maxwell Libragear turning himself into a cyborg, no one really knows how or why they're there, let alone who made them.

* TrappedInAnotherWorld: A common, though unexplained phenomenon observed by Mirshians is the appearance of Earthlings, people who are transported over from their worlds through magical means including transference and reincarnation. Earthlings also gain a power called a [[IsekaiBonus "Quirk"]] as part of the transportation process.

** The world where K comes from appears to be [[CrapsackWorld an Earth that has faced an apocalypse]], where public order has broken down as humanity faces an alien threat called "irregulars", parasites that can take over people to infiltrate humans and mutate into building-sized monsters.

** The world of Soulslayers Rin, Ame, and Akari is something the likes of ''Manga/BlueExorcist'' and ''Manga/JujutsuKaisen'', where Soulslayers are exorcists who have pledged themselves to a lord for power and use it to defend society by eliminating yokai and evil spirits.

* LostTechnology: The Scientific Inheritance is a catchall term for technology that is beyond Mirsha's level, often found in dungeons where its cores create monsters called "guardians", who slay any intruders to be converted into antimatter that go into powering said cores. Though a treasure trove for adventurers who delve into the dungeons, finding and selling such artifacts, no one really knows how or why they're there, let alone who made them.

* AdventureFriendlyWorld: [[CrapsaccharineWorld Mirsha is not a safe place to live.]] There's always some kind of person stirring up trouble, monsters are a threat everywhere, and Earthlings with their powerful Quirks is usually a sign something's going to happen, their fault or not. Of particular interest are dungeons which contain dungeon cores and advanced, unknown technology from ancient times called Scientific Inheritance, possessing power bordering on magic. All in all, such incidents are also opportunities for some kind of adventure, moreso for professional adventurers.

* DungeonBasedEconomy: Not to the point of nations being totally dependent on them, but since a majority of Scientific Inheritance is found in dungeons, technology that is always subject of interest to researchers and nations alike, adventurers delve into them to find the Inheritance and sell them as lucrative spoils.
* ADungeonIsYou: Dungeon cores are the centerpieces of the dungeons they run, being highly advanced AI that run dungeons to lure in adventurers and kill them with its guardians for their corpses, which can then be turned into antimatter, the resource that powers cores. Since these cores have a wide variety of uses that includes empowering individuals contracted to them, they are so highly coveted that White Falcon strictly places all dungeon cores as their sole property. Dungeons and their cores also have their own [[TierSystem tiered classes]] based on their size and its core's performance, from lowest to highest: Cradle, Chamber, Crypt, and Ark (Magnolia Magic Academy is one example),

* LostTechnology: The Scientific Inheritance is a catchall term for technology that is beyond Mirsha's level, often found in dungeons where its cores create monsters to slay any intruders to be converted into antimatter that will power said cores. Though a treasure trove for adventurers who delve into the dungeons, finding and selling such artifacts, no one really knows how or why they're there, let alone who made them.

* TrappedInAnotherWorld: A common, though unexplained phenomenon in Mirsha is the appearance of Earthlings, who all are transported over from their worlds through magical means including transference and reincarnation. Earthlings also gain a power called a [[IsekaiBonus "Quirk"]] as part of the transportation process.

* StandardFantasyRaces: So far, there's [[HumansAreAverage humans]], [[OurElvesAreDifferent elves]], [[LittleBitBeastly demibeasts]], [[DemonLordsAndArchdevils fiends]], and [[RidiculouslyHumanRobots automatons]].

There is a world called "Mirsha", a magical land filled with all manner of races with humans being one of many. In its present however, the demonic, all-powerful fiends wage war to dominate the world with the defending Kingdom of the White Falcon on the losing end. This prompted its ruling princess, Stella, to use her bloodline's magic to call on a hero from Earth: K, a hunter of parasitic "irregulars" who had just been moments away from death upon a betrayal. Beseeched by the princess, he obliges, fighting in the war against the fiends and becoming part of a dungeon delving team composed of Stella, his guardian knight Tanya, and fiend-turned-ally Francesca to retrieve its core, one with the power to turn the war around in their favor.

When the team does retrieve the core, Stella hugs K in gratefulness--only for her to fatally stab him in order to activate the dungeon core, followed by Tanya being cut down by Francesca. As the laughing princess's true colors were revealed, K swore vengeance as he fell into the dungeon's depths.

* ImprobablyFemaleCast: There are a handful of male Heroes available since launch: K, Bleu, Pesketh, Orox, Flamberge, Guizam, Maxwell, and Leo. Meanwhile, the number of women is far greater by dozens compared to males.

* JigglePhysics: If there's a busty girl--and there's a ''lot'' in this game--expect plenty of motion from their chests.

The combat gameplay shares much in common with previous Smilegate-published game ''VideoGame/EpicSeven''; on the field, you control four heroes at a time from a roster of collectable characters rolled from the Recruit section, having the option to switch out heroes before battles according to the situation. Of note are two systems that can be activated at the player's discretion: Action Points, which can boost a hero's skill up to three levels depending on the AP used, and Skill Chain, which causes all your heroes to attack all at once, causing effects that vary between heroes and is best used strategically to trigger timely boss staggers.

* AlternateUniverse: It's clear early on that K does not come from our Earth, his world being an apocalyptic place where hunters like him fight against body-snatching parasites, and other Earthlings coming from clearly different Earths. As a guard explains to him on his arrival, this idea is known as "Parallel Earths", where all Earthlings originate from a myriad of worlds that may or may not be in different time periods, if not different timelines altogether

As a story setting, the game is, put simply, a mish-mash of whatever popular ''isekai'' tropes the game developers could get their hands on, compared to the likes of ''Literature/TheRisingOfTheShieldHero'', ''Literature/ReZero'', and other similar stories of the otherworld fantasy genre.

* FantasyKitchenSink: It's very likely one can find a couple LightNovel substitutes in the characters and the various worlds they come from, Mirsha and parallel Earths alike that AnachronismStew and culture clash is a common sight. For example, you can have [[GunsVsSwords a woman from an apocalyptic world toting high-tech firearms taking on a tough-as-nails woman with a mean sword arm]], [[FantasticRacism humans enslaving beastly demihumans, mages looking down on non-mages, and nature-loving elves hating industrial civilization]], and [[MagicVersusScience science clashing and/or melding with magic]].

* StandardFantasyRaces: So far, there's humans, elves, demihumans, fiends, and automatons.

* BigOffscreenWar: The "war against the fiends" is as it sounds, in which the White Falcon was the leader of the forces allied against the fiends and whom K had fought against as the kingdom's hero. After Stella sacrificed K to the dungeon core, she managed to defeat the fiends and pushed them back to their territory, giving victory to the alliance, though the scars of the war remain fresh for everyone involved.
* FantasyKitchenSink: It's very likely one can at least one LightNovel substitute in the characters and the various worlds they come from, Mirsha and parallel Earths alike that AnachronismStew and culture clash is a common sight. For example, you can have [[GunsVsSwords a woman from an apocalyptic world toting high-tech firearms taking on a tough-as-nails woman with a mean sword arm]], [[FantasticRacism humans enslaving beastly demihumans, mages looking down on non-mages, and nature-loving elves hating industrial civilization]], and [[MagicVersusScience science clashing and/or melding with magic]].

There is a world called "Mirsha", a fantasy setting filled with all manner of races with humans being one of many. In its present however, the the all-powerful fiends wage war to dominate the world with the defending Kingdom of the White Falcon on the losing end. This prompted its ruling princess, Stella, to use her bloodline's magic to call on a hero from Earth: K, a hunter of parasitic "irregulars" who had just been moments away from death upon a betrayal. Beseeched by the princess, he obliges, fighting in the war against the fiends and becoming part of a dungeon delving team composed of Stella, his guardian knight Tanya, and fiend-turned-ally Francesca to retrieve its core, one with the power to turn the war around in their favor.

!! ''Outerplane'' summons examples of these tropes: