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[[quoteright:350:[[VideoGame/StarCraft http://static.tvtropes.org/pmwiki/pub/images/space-marine_terran-marines_1841.jpg]]]]
[[caption-width-right:350:In space, no-one can hear you ooh-rah.]]

->''[[BadassArmy They shall be my finest warriors]], these men who give of themselves to me. [[SuperSoldier Like clay I shall mould them, and in the furnace of war forge them. They will be of iron will and steely muscle.]] In [[PowerArmour great armour shall I clad them]] and with the [[{{BFG}} mightiest guns will]] they [[OurWeaponsWillBeBoxyInTheFuture be armed]]. They will be [[WeWillHavePerfectHealthInTheFuture untouched by plague or disease]], no sickness will [[AcquiredPoisonImmunity blight them]]. They will have [[BigBookOfWar tactics, strategies]] and [[AwesomePersonnelCarrier machines]] so that [[CurbStompBattle no foe can best them in battle]]. They are [[HoldTheLine my bulwark against the Terror]]. They are the Defenders of Humanity. [[BadassBoast They are my Space Marines and they shall know no fear]].''
-->-- '''[[GodEmperor The Immortal God-Emperor of Mankind]]''', ''{{Warhammer 40000}}''

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Since SpaceIsAnOcean, Space Marines are the troops carried by spaceships, their roles paralleling those of [[SemperFi conventional]] marines: [[DropShip mobile deployment]], [[BoardingParty boarding hostile ships]], securing ports -- including {{Space Station}}s -- from SpacePirates.

These guys are the number one troops of choice for the humans in the StandardSciFiSetting.

Space Marines [[UrExample first turn up]] in the short story "Captain Brink of the [[TropeNamer Space Marines]]" by Bob Olsen in ''Magazine/AmazingStories'' Volume 7, Number 8, of November 1932, and a later followup, 1936's "The Space Marines and the Slavers." The trope, however, fully rose to prominence with the use of the term on the wildly popular ''[[Literature/{{Lensman}} Lensman Series]]'' beginning in 1934. In 1959, ''Literature/StarshipTroopers'' [[TropeCodifier codified]] the trope, popularizing the emblematic PowerArmor and the array of exotic weaponry they wield.

''TabletopGame/{{Warhammer 40000}}'' from Creator/GamesWorkshop is notable for taking these aspects to a peak and becoming one of the more recognizable instances of the trope, if certainly not the first. Despite this, as of early 2013, the company claims ownership of a registered trademark (in the UK at least) on the ''name'' "Space Marine" (on occasions claiming "Marine" itself), though not the ''trope'' itself. This trademark has been [[http://mcahogarth.org/?p=10593 used to make actual legal threats]] on occasion, most notably against the author of ''Literature/SpotsTheSpaceMarine''.

These elite soldiers have the cachet of conventional Marines. Add bulky PoweredArmor and (sometimes) either BioAugmentation or [[{{Cyborg}} cyber-augmentation]] (or ''[[TakeAThirdOption both]]''!) to get classic SuperSoldiers.

In many settings they fight as a squad, sometimes with AwesomePersonnelCarrier support, or launched by DropPod. A notable exception to this are the many {{First Person Shooter}}s that use the Space Marine background as a useful excuse to get a highly trained soldier alone on a hostile planet. This tradition starts with the much-imitated ''VideoGame/{{Doom}}'' series -- see ASpaceMarineIsYou and OneManArmy.

This page shouldn't be to be confused with the video game ''VideoGame/Warhammer40000SpaceMarine'', though that game pretty much is about them.

It should be noted that the name "space marine" is actually a misnomer -- there's no water in deep space. Works aiming for more realism or a more RayGunGothic feel may prefer to call them "espatiers." But for those wanting more to invoke the Romantic SpaceIsAnOcean trope the name space marine works just fine. Sometimes, "space marine" [[CulturalTranslation is culturally translated]] into "space [insert BadAss military unit here]" - for instance in Russia space marines are often called "space landing forces" (''kosmodesantniki'') after the VDV[[note]]Vozdushno-desantnye voyska, "air-landing forces".[[/note]] an airborne unit of the Russian military that has roughly the same reputation as the [[SemperFi USMC]] and [[BritsWithBattleships Royal Marines]] in American and British cultures.

'''Note: This trope is about the elite spaceborne soldiers themselves. Overly-generic Science Fiction military protagonists belong elsewhere, such as ASpaceMarineIsYou for video games.'''

----
!!Examples

[[foldercontrol]]

[[folder:Anime and Manga]]
* In ''LegendOfGalacticHeroes'', the Rosen Ritter from the [[TheFederation Free Planets Alliance]] is a notable case. Its members have been consistently regarded as elite soldiers; their standard equipment includes the PoweredArmor and they are practically the only group in the series to engage in [[BoardingParty boarding tactics]] against enemy ships.
* ''MobileSuitGundamUnicorn'' introduces ECOAS (acronym for "Earth Colony Asteroid", an idea similar to the real-life [=SEALs=]), a special operations unit of the [[TheFederation EFSF]]. Tasked to hunt down Neo Zeon remnants, their speciality is covert infiltration with their tank/mecha/APC hybrids.
[[/folder]]

[[folder:Films -- Animated]]
* In ''WesternAnimation/TitanAE'' Korso is a former Earth Space Marine.
* In ''Disney/WreckItRalph'', the [[ShowWithinAShow game within a movie]] Hero's Duty features a squad of space marines fighting a BugWar.
[[/folder]]

[[folder:Films -- Live-Action]]
* The Colonial Marines of ''Film/{{Aliens}}'' greatly helped popularise the trope. This classic version of the Space Marine is quite conservative -- for example, no PowerArmour and generally conventional weapons. Interestingly, the cast was required to read ''Literature/StarshipTroopers'' before filming, a book which is also required reading for the RealLife USMC. In addition, figures from ''Aliens'' have to acknowledge Games Workshop's registered trademark of the name ''Space Marine'', despite that ''Rogue Trader'' came out the year after ''Aliens''.
* Some of the marines in ''Film/{{Avatar}}'' were actual marines, albeit now they're PrivateMilitaryContractors rather than military. James Cameron said he essentially invented the modern 'space marine' so if anyone should be allowed to use it it should be him.
* Kainan, the protagonist of ''Film/{{Outlander}}'', was a space marine in the BackStory. In the movie itself, he quickly loses his space-armor and gun, and essentially gets adopted as a [[HornyVikings Viking]].
* A platoon of Marines equipped with laser weapons are dispatched into space to destroy Drax's satellite base at the climax of ''Film/{{Moonraker}}''.
* One group of specialist Clonetroopers who appear briefly in ''StarWars Episode III: RevengeOfTheSith'' have been identified in [[StarWarsExpandedUniverse Expanded Universe]] material as "Galactic Marines."
** This is also a primary function of Imperial stormtroopers. The very first time we see them is in the ISD ''Devastator's'' boarding action against the ''Tantive IV'' in ''Film/ANewHope''.
* In ''Film/{{Doom}}'', a platoon of marines called the Rapid Response Tactical Squad is dispatched to deal with the events on Mars.

[[/folder]]

[[folder:Literature]]

* [[TropeCodifier A primary inspiration for this trope]] is Creator/RobertAHeinlein's ''Literature/StarshipTroopers'', though his Mobile Infantry are ''never once'' described as marines, and could just as well be based on army paratroopers except that SpaceIsAnOcean. His description of their bulky power armour and exotic weaponry is a classic which influenced many later designs. The spirit of the Mobile Infantry shows the experience Heinlein had of RealLife Marine drill instructors at the U.S. Naval Academy. It is oddly circular that ''Literature/StarshipTroopers'' is now required reading for the RealLife USMC.
* Heinlein's earlier ''Literature/SpaceCadet'' actually features Space Marines under that name. The protagonist, a member of the Space Patrol, considers transferring but is convinced to do otherwise by his mentor. As he explains, the branches of the Space Patrol tend to attract different men: the Marines attract those who seek glory and excitement, the Patrol attracting men of intellectualism and idealism, reflected in [[PretentiousLatinMotto the Patrol's motto]] -- ''[[WhoWatchesTheWatchmen Quis custodiet ipsos custodes?]]''[[note]]Who will guard the guardians?[[/note]] The protagonist elects to remain in the Patrol.
* As mentioned by the introduction, the ''Literature/{{Lensman}}'' series probably ranks among the earliest examples. ''Galactic Patrol'' of 1937 featured the first appearance of the Space Marines [sic], whose [[OlderThanTheyThink powered armor]] might well have inspired Heinlein's later, more iconic version.
* The warrior class in Creator/JohnSteakley's ''Literature/{{Armor}}'', including the protagonist, obviously heavily inspired by Heinlein.
* The ''CoDominium'' series feature the ''CD Space Navy and Marines'' and later, the Imperial Marines. The CD Line Marines are formed from the [[LegionOfLostSouls The French Foreign Legion]], and thus keep a lot of their traditions alive. The CD Marines armament includes semi-automatic rifles, large-bore weapons loaded with armor-piercing and (sometimes) heavy tanks, with the CD providing orbital fire support up to and including nuclear weapons. The particular Line Marine unit most often featured in the novels is commanded by an officer politically on the outs with the most powerful man in the Grand Senate, and as such they repeatedly get denied proper resources. This can give a misleading impression of the CD Marines in general.
* In Creator/CJCherryh's ''Literature/AllianceUnion'' novels, Fleet warships have a complement of marines. As relatively hard sci-fi their armour is minutely described and plausible as technology. The marines are key to securing assets: getting into space is exorbitantly expensive enough, so an armed starship entering a system can own it by closing with other ships and stations to secure them with the marines. The marines are able and willing to blast and cut their way to control centers, even if it means exposing parts of the station to vacuum. Life for a marine is very boring 99% of the time, being excluded belowdecks from the ship's crew. When deployed, there is the terrifying prospect their ship might suddenly need to ''move'', with no friendly ship in-system in a decade.
* Though they aren't actual 'space' marines, the Seanchan Fists of Heaven in the WheelofTime do fly around on what basically amount to living planes in a late medieval setting and execute hit and run raids from the air. Though the Bloodknives introduced in Gathering Storm probably fit this better; they are elite Fists equipped with items that repel magic and eliminate fear in the wearer who stay behind instead of being evacuated with the remainder of the Fists to kill as many enemy wizards as they possibly can before going down.
* The UNEF Infantry in Joe Haldeman's ''TheForeverWar''. Their power armor comes with built-in laser cannons and medical systems that can automatically amputate severely damaged limbs and cauterize the wound. Their power armor makes them unstoppable killing machines, but inside the armour the marines are just frightened conscripts who really don't want to be there.
* The Royal Manticoran Marine Corps, the People's Marine Corps and their counterparts in various other star nations besides the Star Kingdom of Manticore and People's Republic of Haven in the ''Literature/HonorHarrington'' series. Grayson is an exception here: they lack a dedicated branch for Marines and use troops borrowed from the Army for the tasks (boarding actions against pirates and planetary assaults) other nations use Marines for. The Manticoran Space Marines use a mix of regular infantry and powered armor with customizable loadouts (for example, high speed long lasting scout configuration or bulkier, slower assault configuration). Troops in powered armor are considered the 'modern' equivalent of tanks.
* We never actually see the Space Marines in Robert Zubrin's ''The Holy Land'', but they must kick a lot of butt. A detachment was sent to Earth to rescue one alien woman from one group of theology students holed up in the basement of a cathedral, "turning much of northern Manhattan into a light-textured finely ground dust in the process."
* Creator/RichardKMorgan's ''Literature/TakeshiKovacs'' books feature the Vacuum Commandoes. Among other things, they engage in boarding actions on spacegoing craft. They are therefore ''literal'' Space Marines.
* The ''Literature/HyperionCantos'' features FORCE Marines. Complete with PoweredArmor and [[SwissArmyGun Swiss Army Guns]]. [[ColonelBadass Colonel Fedmahn Kassad]] is one; don't mess with him.
* As Sergej Luk'yanenko's books ''Линия Грёз'' and ''Императоры Иллюзий'' are set in the first ''VideoGame/MasterOfOrion'' universe, there naturally are Space Marines.
* The entire Space Opera Genre, being essentially ''War and Peace'' in Sci-Fi settings, features space-related tropes and space marines where the average [[SarcasmMode history novel]] featured sailors and the original navy.
* They get relatively brief mention in the games, but in the ''Literature/WingCommander'' novels, the Terran Confederation Marine Corps serves this role. In the novel ''Fleet Action'' they probably have their CrowningMomentOfAwesome, when they board a fleet of super-powerful carriers against which the normal weapons (torpedoes delivered by fighters) were useless due to their extreme armor and shielding, for the purpose of detonating antimatter mines inside the carriers. Naturally, this is not survivable for the Space Marines in question, but when the alternative is TheEndOfTheWorldAsWeKnowIt...
* The MacGuffin in Reed de Buch's ''Skymarine Jones'', mainly a spoof on the whole genre of Space Marines and Ringworlds, complete with Voodoo possessed unstoppable [[TalkingWeapon sentient weapons]] - Marx Brothers meets Halo. [[http://reeddebuch.blogspot.com/search/label/Skymarines Skymarines]]
* The Allied Space Marines in John Ringo and Travis Taylor's "Vorpal Blade" Series. Their modular Wyvern armor doubles as space suits. It also incorporates a chameleon coating, and a full sensor suite, including particle sensors, which they are required to be able to understand.
* The ''Literature/ConfederationOfValor'' series follows Staff Sergeant (later Gunnery Sergeant) Torin Kerr, a senior NCO in the [[TheFederation Confederate]] Marine Corps. These marines' primary role is ground combat, not boarding actions. Also the series puts an interesting twist on it: Confederate Marine armor, while {{powered|Armor}}, is not very bulky at all since it needs to still be usable in case the Others hit them with EMP. Most of their tech is similarly intended to work just as well in its primary function with or without electricity.
* Marines are present in the ''Literature/StarRiskLtd'' series (two of the protagonists, M'chel Riss and Chas Goodnight, are a former and ex-Marine respectively), but usually ignored since the series focuses on a group of mercenaries unaffiliated with TheAlliance.
* ''Literature/SpotsTheSpaceMarine'' achieved a bit of internet fame in February 2013 after it was pulled from Amazon when Games Workshop claimed Trademark violation. The space marines in question are near-future marines equipped with PoweredArmor provided by alien allies that has built-in DeflectorShields, and deployed on a distant planet to fight in a BugWar.
* In the ''Literature/HostileTakeoverSwann'' series, all of the arms of the [[TheFederation Confederacy]] seem to maintain these. We mostly see the Occisis Marines, who are devotedly Catholic and ethnically homogenous, like the planet of Occisis. A large division of the Marines are seconded to Klaus Dacham. Their commander, Captain Shane, plays a major role.
* The ''Literature/TheirsNotToReasonWhy'' series has the The Terran United Planets Space Force Marines, complete with power armor support. It's implied that the other spacegoing polities have their own SpaceMarines too, with the V'Dan Marines specifically mentioned.
* The Terran Expeditionary Force, as depicted in "The Hero", one of Creator/GeorgeRRMartin's "Thousand Worlds" science fiction stories. They are HeavyWorlders outfitted in PowerArmor with [[JetPack rocket belts]] and sonic weaponry, and they have strength and speed far beyond normal humans and the aliens the protagonist encounters in the story.
* The UF marines in ''Literature/InvasionOfKzarch'', who fight in space, air, land... anywhere they can find an enemy.
[[/folder]]

[[folder: Live Action Television ]]

* ''Series/{{Andromeda}}'' had the "Lancers," which appear to serve the same functions as Marines traditionally do.
* ''Series/BabylonFive'':
** The episode "Gropos" featured the Earth Force Marine Corps, dirtside troops of the Earth Alliance (the episode title is short for "ground pounders"). Just about every stereotype of Space Marine behavior made it into this episode, including the obligatory bar fight. Towards the end of the episode, they depart for a battle that we briefly get to see, and the very end of the episode reveals [[spoiler: every single named Gropo character, except for General Franklin and his [[OldSoldier senior NCO]], had been killed off-screen in the battle, within feet of each other.]]
** The Gropos make another appearance in the third season, when they come to the station [[spoiler: to forcefully try to take it back from Captain Sheridan.]]
* ''Series/{{Battlestar Galactica|Reimagined}}'' has marines (Colonial Marine Corps) who are dressed and equipped similar to a RealLife Hostage Rescue Team. Originally created as throwaway Redshirts for action scenes, they end up playing an important role in events (e.g. power struggles) in the Rag Tag Fleet.
* Sgt. Riley in ''Series/{{Pixelface}}'' is a space marine from a video game called ''Sentient Force''.

* ''Series/RedDwarf'' makes a brief mention to their existence in the extended cut of ''Back In The Red''. Also, in one of the books [[spoiler: Rimmer's son]] was a space marine.
* ''SpaceAboveAndBeyond'' is a TV series about TheSquad of literal Space Marines.
* ''Series/StarTrekEnterprise'' had a team of [=MACOs=] (for [[FunWithAcronyms Military Assault Command Operations]]) attached to the crew in the third season. Despite some initial tension with Enterprise's [[RedShirt security team]] they proved to be quite useful (certainly more so than ''[[Series/StarTrekVoyager Voyager's]]'' [[TheGuardsMustBeCrazy security personnel]]) though their use of Special Weapons and Tactics caused some {{Continuity}} gripes from fans. The trope also gets a reference in the first ''Star Trek: Elite Force'' game (see below,) with the EMH stating "I'm a doctor, not a space marine!"
[[/folder]]

[[folder:Music]]

* Talvikuningas, a concept album by the Finnish band CMX, gives us the Praetorian cyborgs. They're exactly what you'd think they would be. Bulky armor, heavy weapons, modified genes and, oh yes, they're cyborgs. (But don't just take our word for it, watch the [[http://www.youtube.com/watch?v=fGCsh_bnhuQ music video]])

[[/folder]]

[[folder: Tabletop Games ]]
* The setting of the ''TabletopGame/{{Warhammer 40000}}'' tabletop game and assorted derived media, which include computer games, comic books and bestselling novels, prominently features an army of warriors known more properly as the Adeptus Astartes, but most often referred to as simply the Space Marines. Not only is he a holistic WarriorMonk in bulky PoweredArmour, who wields a lot of [[MoreDakka big guns]], kills aliens, heretics, and mutants with ease, and [[NervesOfSteel knows no fear]], he's ''also'' a genetically engineered SuperSoldier with a [[ChurchMilitant fanatical devotion to the Emperor]]. In summary, the trope TurnedUpToEleven. They're generally considered the SpotlightStealingSquad of the setting, and have a number of sourcebooks dedicated to them. These guys can suffer from SeinfeldIsUnfunny, being such a long-running franchise.
** And if these guys aren't scary enough, you also have the Chaos Space Marines, the belligerent mutated brethren of the Space Marines, who come in all different flavors (from AxCrazy to plague-zombies to metalhead drug-addicts to the spirits of deceased Marines bound to their armor long after their bodies had crumbled to dust). Add this to the fact that they serve a host of {{Eldritch Abomination}}s and even the other Marines are afraid of them.
** Let's go into what exactly goes into making a 'Space Marine' by [[SerialEscalation 40k standards]]. Your aspirants are usually natives of a DeathWorld and/or a ProudWarriorRaceGuy culture, and [[TheSpartanWay go through extensive trials to whittle it down to the very best of those]]. Then comes the SuperSerum- the gene-seed derived from the children of a PhysicalGod, which alters your very appearance to be more like your Primarch. Then you have many additional organs and bionics gradually implanted, [[BizarreAlienBiology a second heart, a third lung, acid spit glands]], and then you begin your combat engagements as a Scout. If you survive those, you then get the Black Carapace, a large skin implant that interfaces with the PoweredArmor you just earned the right to wear. All this time you'll receive training in every aspect of military life and activity, and indoctrinated into a [[WarriorMonk fanatical faith in the Emperor]], and [[TrainingFromHell undergo difficult and deadly initiation rituals]], and constantly monitored for any sign of corruption, weakness or disloyalty. If you survive all that? Congratulations, you're now (at least as far as your role on the tabletop) [[{{Mook}} a disposable shield for a heavy weapons team]].
** The actual Imperial Navy tends to use poorly-trained conscripts for both its boarding actions and its defence against the same. They are basically a vast mass of cannon fodder with shotguns designed to shred soldiers while leaving corridors relatively undamaged to fit with the rules about Imperial Navy commanders not being allowed to have anyone useful in ground actions under their direct command. The Space Marines themselves take part in boarding actions generally only when their ''own'' ships are involved (the Space Marines are a seperate organisation altogether, it's complicated but there is [[HorusHeresy a reason]]) and as befitting such elite troops, this generally consists of small squads penetrating to the enemy ship's bridge or engines.
** ''TabletopGame/BattlefleetGothic'' gives the Eldar the option to have Aspect Warrior boarding parties. Depending on which Aspect you consider as making up these parties, the options can turn downright ''scary''.
** The Tau eschew close combat in normal 40k as well as ''Battlefleet Gothic''; whoever they use as marines are pretty bad at it. Except when his name is [[VideoGame/FireWarrior Shas'la Kais]], in which case he's a [[OneManArmy Walking Death]].
* Elite Clan infantry in the ''BattleTech'' universe are, indeed, located somewhere inside armor the size of four brick shithouses. The subversion is that these Space Marine stand-ins are chosen to be infantry in a galaxy where HumongousMecha are kings of the battlefield, so they're already seven feet tall plus and ripped to shit, and then they're put inside armor that allows them to survive in extreme heat, cold, the vacuum of space, underwater, and fly through the air...hence their name: Elementals.
** Then there's their reputation of being able to rip open [[HumongousMecha Battlemechs]] like tin cans, given a [[ZergRush sufficient numerical advantage]].
** With emphasis on ''Elite''. Elementals are ''BattleTech'' universe's equivalent of [[TabletopGame/{{Warhammer 40000}} Astartes]]: Genetically engineered giants equipped with powerful battle armor designed to tear the shreds out of all opposition, especially much larger Battlemechs. The Clans also have regular infantry but they're treated as little more than CannonFodder.
** This is about the point where we should mention that the Inner Sphere on the other hand also has huge suits of powered armor in a wide variety of shapes and sizes (which the Clans are catching up to), but have to make due to regular men and women inside of them. They also make use of regular infantry, which can be on foot, riding in/on vehicles, or using jet packs.
** A particular Inner Sphere example belongs to the mercenary outfit known as the Grey Death Legion. The Legion was the first to use power armor extensively, not only for infantry combat, but for getting close ''and blowing the legs off battlemechs.'' The GDL's anti-mech units are as close to BadassNormal as the Battletech Universe will allow.
* ''Race for the Galaxy'', a card based game designed by Thomas Lehmann, has a card entitled Space Marines which displays the most generic view of this trope. The card gives an obvious military bonus.
* The ''[[TabletopGame/StarfleetBattles Prime Directive/Starfleet Universe]]'' Strategy game and RPG actually give all the major space empires, like the Federation and the Klingons, Platoons of Space Marines for boarding actions or planetary drops.
* In ''TabletopGame/{{Traveller}}'' the Third Imperium is famous for the prowess of its marines. They usually wear battlesuits and are trained to "parachute" out of space. They also have esoteric customs like their cutlasses and bagpipes.
* StarfleetBattles has (almost all) ships equipped with Boarding Parties, which can be used to board other ships or repel boarders, and the Marines optional module adds detailed ground combat (with tanks, heavy weapons squads and even air support and artillery as well) and highly detailed subdivisioning of (most) ships for more 'realistic' boarding actions. It also added many more 'commando' ships, which exist primarily to deliver marines to combat.
* The cunningly titled ''Space Marines'', published by FanTac in 1977.
* In ''Tomorrow's War'' the USMC themselves have jurisdiction over all of the USA's extraterrestrial ground actions. By agreement with the Army who get Earth.

[[/folder]]

[[folder: Video Games ]]

* ''VideoGame/Warhammer40000SpaceMarine'': ExactlyWhatItSaysOnTheTin.
* "The Space Marine" is the only name given the hero of the ''VideoGame/{{Doom}}'' series. Among fans, he's acquired the affectionate nickname of "Doomguy". On his guest appearance in ''VideoGame/QuakeIIIArena'', he's known simply as "Doom". In the books, his name is Flynn Taggart. A more generic army name there ain't. In the Doom movie, he was named John Grimm. Apparently id Software's sole insistance for the film was that his first name be 'John'. In ''[[Fanfic/DoomRepercussionsOfEvil Repercussions of Evil]]'', he was named John Stalvern. In the recent ''[[VideoGame/{{Doom}} Doom 3]]'' novels by Matthew Costello, he was named John Kane. Curiously, this is the same surname as the protagonist of ''VideoGame/QuakeIV''. He doesn't have much charactersation as an actual space marine, but the phrase has gone on to become a shorthand for a certain type of FPS character -- see ASpaceMarineIsYou.
* John-117 in the ''Franchise/{{Halo}}'' series, better known by his rank "Master Chief", whose design been quite influential on post-2001 video games. He is one of the very few surviving Spartan-[=IIs=], but unlike the basic trope, the Spartan-[=IIs=] were the absolute ''[[SuperSoldier antithesis]]'' of the RedShirtArmy.
** There are also the Spartan-[=IIIs=], who are basically low-budget, expendable Spartans. They're still more badass than almost everything else in the galaxy.
** It is technically inaccurate to label the Master Chief or any Spartan as a Space Marine; while they have powered armor and advanced training (plus loads of augmentations), they're all actually UNSC Naval officers, making them closer to Navy [=SEALs=]. The [[ItsRainingMen Orbital Drop Shock Troopers]] ([[VideoGame/Halo3ODST ODSTs]]) better fit this trope, being actual elite Marines within the UNSC Marine Corps; they consider themselves the main rivals to the Spartans, despite being [[BadassNormal normal humans with unpowered armor]].
*** The regular Marines themselves sort of count, being the UNSC's main rapid-deployment and expeditionary force.
** ''VideoGame/{{Halo 4}}'' introduced the Spartan-[=IVs=], which, unlike their trained-from-childhood predecessors, are made from adult volunteers, with many of them being, ironically, former [=ODSTs=]. They're even more numerous than the [=IIIs=] were, with much better equipment to boot (though they're in general less skilled than their predecessors due to a more relaxed selection criteria). Also, the Spartans now have their own separate UNSC branch, meaning they're technically ''still'' not Marines.
* The basic human unit in ''Franchise/StarCraft'', by far the most-played RealTimeStrategy game ever, is the Marine. The "lots of big guns" aspect sets it apart from the basic units of the other races, giving it range. Despite all the bulky armour and training and the fact that most of them are ''Badass'' convicts that have been brainwashed to risk the life for the force they serve, they happen to be one of the weakest units in the game individually. Goes to show how powerful everything else in the game is. Badass inflation strikes again.
** It is, however, a testimony to the versatility of the Terran Marines that 'M&M' (Marine and Medic in [=SC1=], Marine and Medivac in [=SC2=]) is considered a solid build for most situations and has consistently been a headache to balance against. They're the only cannon fodder in both games with ''anti-air capability'' (the Zerg Queen and Protoss Sentry being closer to vehicles and much less expendable).
* The ''RedFaction'' series has armour-suited EDF Drones deployed from Earth to Mars, first landing to provide emergency aid the rebels, later as a tyrannical occupation force. Their design in ''[[RedFaction Red Faction: Guerrilla]]'' bears similarities to ''{{Halo}}''. They are unusual in being bad-guy Space Marines in a video game.
* ''Franchise/DeadSpace'': {{Subversion}}: The main character, Isaac Clarke, has the armor, weapons, and coolness of a Space Marine... And he's a ''[[TheEngineer repairman]]'': his "weapons" are [[ImprovisedWeapon tools for mining and repairs.]]
** Although played straight at times in the sequel; Isaac can acquire quite a few suits of armor which qualify (although you can still equip the original one whenever you want). He can also acquire new weapons which can only be military grade.
* ''VideoGame/BeyondGoodAndEvil's'' [[LargeHam hamtacular]] Double H is something of an AffectionateParody of the Space Marine (and possibly the ActionHero in general). For one thing, he's the dutiful {{Sidekick}} instead of the main character, who is introduced to play JamesBondage before anything else. Most of his military-inspired one-liners and battle cries are intentionally [[SoBadItsGood So Bad They're Good]]. He's rather [[GentleGiant squishy and awkward]] beneath his grizzled BadAss facade and PermaStubble.
* Space Trooper is one of the 10 original ring sets available in "[[GaiaOnline zOMG!]]". Its primary focus is on ranged attacks, and its skills include firing CoolGuns, altering its density, and summoning a BeehiveBarrier.
* ''VideoGame/DisgaeaHourOfDarkness'' has them. They are the be-all-end-all masters of guns, with the highest HIT affinity in the game (''tying'' with the GameBreaker Majin classes).
* One of the major complaints against the 2008 ContinuityReboot ''VideoGame/{{Turok}}'' game is the conversion of the main character from a colorful Native American Warrior to a generic Space Marine straight outta ''Film/{{Aliens}}''.
* In ''GearsOfWar'' and ''[[GearsOfWar Gears of War 2]]'' you are veteran marine Marcus Fenix. He wears the trademark bulky armor.
* ''{{Freespace}}'' had them as well, but since it was a space sim, they were relegated to cutscenes and briefing reports on the overall war. The GTA ones appeared to be the only competent ones though, since the versions for any other group seemed to be butchered in any encounter.
* Commander Shepard, Gunnery Chief Ashley Williams, and Lieutenant Kaidan Alenko in ''Franchise/MassEffect'' are all Space Marines - although Kaidan, as a combination [[MindOverMatter biotic]]/tech guy/[[TheMedic medic]], notably doesn't fit the trope in most respects, and Shepard becomes more like a Space Secret Agent at the start of the game. Applies when you play as a [[WalkingArmory Soldier]], [[MagicKnight Vanguard]], or [[StealthExpert Infiltrator.]]
** Though your team in the [[VideoGame/MassEffect2 second game]] is an even bigger RagtagBunchOfMisfits than the first, you actually end up boarding more starships, making more rapid insertion operations, and generally behaving more like Space Marines than you do in the first game. The third game adds [[TheBigGuy Lieutenant James Vega]].
* ''VideoGame/StarTrekEliteForce'' practically lampshades the aforementioned ineffectiveness of ''Voyager's'' security, as its premise is that a group of the best combatants aboard form a special “hazard team” of space marines.
* In the ''Franchise/StarTrek'' vein, ''VideoGame/StarTrekOnline'' has several Space Marine organizations.
** ''Series/StarTrekEnterprise's'' M.A.C.O.s return as one of the anti-Borg organizations alongside the Klingon Honor Guard and despite the ongoing war between both sides, they've teamed up to create an Anti-Borg Task Force called the Omega Force. There's also the Nukara Strikeforce who are another multi-faction task force who deal with Tholian threats and the new Dyson Joint Command, a joint task force led by the [[DefectorFromDecadence Romulan Republic]] to push back the Voth from the Solaneon Dyson Sphere. Joining these organizations are the majority of End-Game reputation systems (though the M.A.C.O./Honor Guard/Omega Force existed before the reputation mechanic was put in).
** Commander K'Tek of the Klingon flagship IKS ''[=Bortasqu'=]'' is basically one of these. His job title is ''[=QaS DevwI'=]'', or [[YouAreTheTranslatedForeignWord "troop leader"]], and it entails leading the ship's embarked troops during [[BoardingParty boarding actions]].
* ''[[VideoGame/StarControl Star Control 2]]'' features the Orz, whose ships can deploy combat-exosuit-wearing space marines who will board enemy ships to kill their crews.
* The ''Half-Life'' mod ''Natural Selection'' features aliens vs. Space Marines, in a cross between first person shooter and real time strategy.
** Vanilla ''VideoGame/HalfLife1'' was a touted aversion, starring an ActionSurvivor BadassBookworm instead of yet another Space Marine. But on reaching the [[DisappointingLastLevel end levels]], the weapons, playstyle and situations were essentially the same -- ''VideoGame/QuakeII'' with the serial numbers filed off.
* In the ''VideoGame/WingCommander'' games some secondary characters are Space Marines.
** In the [[ExpansionPack add-on]] "Operation Thor's Hammer", for the original ''Wing Commander'', they provide the force that assassinates the [[CatFolk Kilrathi]] priestess conducting the Sivar Eshrad ceremony on Firekka.
** In ''Wing Commander IV'', Space Marines of both the Terran Confederation and the Union of Border Worlds play a part in the plot, mostly in regards to boarding ships and stations to (re)capture them for their respective governments.
** ''Wing Commander Prophecy'': Terran Confederation marines recapture several stations taken over by the [[HordeOfAlienLocusts Nephilim]], and shut down most of the [[PortalNetwork wormhole gate]] in the final mission, leaving the player to finish the job due to stiff resistance from the [[FantasticRacism bugs]] preventing further marine penetration of the facility.
* The Federation Troopers of the ''MetroidPrime'' series. Unfortunately, they most frequently serve as the franchise's requisite RedshirtArmy. This is more a matter of the WorfEffect than any inherent weakness. In ''[=MP3: Corruption=]'' however, they have shown proficiency beyond this role.
* Ships in ''VideoGame/MasterOfOrion 2'' got marines on board as a BoardingParty or defenders from the same. Planets can be invaded by troops via Transports and build Barracks for defenders.
* In ''StarWarsBattlefront II'', not only do you get land battles, but you get space battles. Space battles have two classes: pilots who have little in the way of personal defense and marines who have better weapons than their land analogues. On the other hand, a pilot's starship auto-repairs.
* Many ships[[note]]mainly capitals, but also corvettes and three of four freighter classes[[/note]] in the ''[[VideoGame/{{X}} X-Universe]]'' series can carry around EVA-capable marines. Player-controlled personnel transports, corvettes, and missile frigates can use them to try and capture other ships - via spacewalking the marines to the other ship or firing them in a [[BoardingParty boarding pod]] - The target ship will sometimes be defended by their own marines, or internal [[SentryGun turrets]]
-->Betty: ''A Marine is a simple creature. Feed it and tell it what to do, any [[BoardingParty many]] [[SpacePirate things]] become possible.''
* Of note are the Republic Commandos featured in ''VideoGame/StarWarsRepublicCommando''. While the standard white armored troopers act like standard infantry, Republic Commandos are equipped with better weapons, custom painted and detailed armor and recieve superior training, as well as distinct personalities, which was considered odd, as they're clones and should be carbon copies of each other. Fighting as a squad with mission support, they more closely fit the trope of classic space marines than the other generic clone troopers. But looking back, this became standard among clones in TheCloneWars television series, which (especially after the first season) has a lot of focus on the clones being this trope, and had TheCameo for Delta Squad.
* Every race in ''VideoGame/SwordOfTheStars'' has some form of power armored marines for boarding actions. Background material for [=SolForce=] states that the marines and the army are essentially the same thing, seeing as the game [[DeathFromAbove doesn't bother]] with [[NukeEm ground]] [[ColonyDrop combat]].
[[/folder]]

[[folder: Web Original ]]
* In all of his forms, [[{{Zoofights}} Iron Manatee]] is one. A veteran of the Anglo-Chinese Opium Moon Wars, he fights in an armored space-suit, later upgraded to a full suit of PoweredArmor with a primitive railgun and diamantine bladed chainsaw.
* The KSS Marines in NexusGate serve as the game's space marines. They guard the Kovolis held space from space pirates and other criminals.
* Commander Badass in ''Webcomic/ManlyGuysDoingManlyThings'' is a Navy [=TiALS=] (Time, Air, Land, Sea) from a "generic space future" who was genetically engineered to be a tough-as-nails buff soldier type, in order to sell action figures because that's apparently how wars are fought in the future.
[[/folder]]

[[folder: Western Animation]]
* In ''WesternAnimation/TitanMaximum'', Titan Force Five and the military they work for is never openly stated they are in the marines, but they are all given Navel Ranks. Billy's rank is even titled Space Seaman.
* ''[[TheCloneWars Star Wars: The Clone Wars]]'': The clone troopers got treated as this more and more the further into the series you go; in much of the first season, especially before [[LowerDeckEpisode "Rookies"]], the clones were mostly grunts who didn't even use cover much like the MechaMooks they fought. Many episodes revolve around this trope as well as TheSquad, and they even fight out on the hulls of ships on at least one occasion. A lot of them go on commando style missions, and they hold up well compared to the Jedi, due to teamwork, especially the "ARC troopers" (who are more independent minded clones). [[RepublicCommando Delta Squad]], who are this trope first, and clones second, make a cameo, as well as another Republic Commando (who true to the game, is a OneManArmy) in the fifth season. Even more outstanding, is the fact that the lowliest grunt clones can and do get promoted to serve alongside superior types of clones, as happens with Domino Squad becoming ARC troopers.

[[/folder]]

[[folder: Real Life ]]

* [[http://en.wikipedia.org/wiki/List_of_United_States_Marine_Corps_astronauts 23 US Marines have been astronauts]], including Colonel John Glenn, the first American to make an orbital flight; as a result, Space Marines have been around, in a very literal sense, almost since the beginning of human spaceflight.
** Of course, unlike the fictional version, these Marines aren't out to fight anyone(yet), but are used because a Marine is highly likely to be in prime physical condition, which is very necessary for working in space. In comparison, there have been over 80 astronauts from the Air Force (Air Force pilots being similarly held to high standards of fitness), but only 15 from the Army (with the Air Force having taken most of the pilot jobs when it split off back in 1947).
* [[http://en.wikipedia.org/wiki/Project_Hot_Eagle SUSTAIN]] is a project being undertaken by the United States military with the purpose of orbital Marine deployment. The closest analog to fiction is Halo's Helljumpers, but it's getting damn close to having Marines fight in space.

[[/folder]]

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-->'''Troper A''': ''"[[TheStinger Any questions?]]"''
-->'''Troper B''': ''*raises hand*''
-->'''Troper A''': ''What is it, troper?"''
-->'''Troper B''': ''"[[Film/{{Aliens}} How do I get out of this chickenshit outfit?]]"''
-->'''Troper C''': ''"[[ShoutOut You secure that shit, Hudson!]]"''
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