Games Like Starship Troopers: Extermination

Aliens: Fireteam Elite is a cooperative third-person survival game set in the iconic Alien Universe. Battle through hordes of different types of Xenomorph, customize your character and gear, and level-up as you try to contain this ever-growing threat.

Why similar: Aliens 22.2%, Co-op 16.1%, Online Co-Op 15.3%, Space 11.5%, Shooter 10.3%

Why You'll Like It: This is one of the best direct alternatives if you want a co-op squad shooter about heavily armed marines holding off waves of xenomorphs in tight sci-fi missions.

Stand and fight for humanity. This arcade shooter takes place in the year 2022, as the Earth Defense Force fends off an all-out attack by unknown life forms. Become an EDF soldier, battle against endless hordes of immense enemies, and restore peace to the earth.

Why similar: Online Co-Op 20.2%, Aliens 19.8%, Class-Based 14.7% ★, Co-op 13.9%, Sci-fi 8.7%

Why You'll Like It: Few games capture the same joy of blasting apart gigantic insect swarms with a squad while cities collapse around you.

The Galaxy’s Last Line of Offence. Enlist in the Helldivers and join the fight for freedom across a hostile galaxy in a fast, frantic, and ferocious third-person shooter.

Why similar: Online Co-Op 24.2%, PvE 14.3%, Co-op 13.6%, Space 12%, Multiplayer 11.2%

Why You'll Like It: It delivers the closest overall vibe with satirical military sci-fi, squad-based PvE objectives, brutal bug swarms, and constant teamwork under pressure.

Deep Rock Galactic is a 1-4 player co-op FPS featuring dwarven space miners, procedurally-generated destructible environments, and endless hordes of alien monsters. Explore cave systems, mine for minerals, and work together to survive!

Why similar: Class-Based 21.8% ★, Co-op 15.9%, FPS 12.9%, PvE 11%, Space 9.6%

Why You'll Like It: Its class-based co-op structure, mission objectives, extraction pressure, and endless alien hordes make it a superb fit despite the mining focus.

Live the future of despair.The year is 2024 AD. The survivors fought against the remaining threats while trying their best to continue their recovery.Three years passed in the year 2027. In a new world without hope, the time has come to once again resist the fate of the Earth.

Why similar: Online Co-Op 22.5%, Shooter 14%, Sci-fi 13.5%, PvE 13%, Co-op 12.2%

Why You'll Like It: It doubles down on EDF's giant-bug war chaos with big co-op battles, absurd enemy counts, and nonstop sci-fi firefights.

NOW AVAILABLE! When the Earth falls to an extra-terrestrial invasion, humanity becomes an endangered species. Earthfall is a four-player cooperative shooter that challenges players to survive hordes of ruthless alien drones and their inscrutable masters.

Why similar: Online Co-Op 19.3%, Aliens 18.6%, FPS 16.7%, Co-op 15.7%, Shooter 7.8%

Why You'll Like It: This Left 4 Dead-style co-op FPS swaps zombies for aliens and emphasizes team shooting, defensive setups, and surviving large attacks together.

Embody the superhuman skill and brutality of a Space Marine. Unleash deadly abilities and devastating weaponry to obliterate the relentless Tyranid swarms. Defend the Imperium in spectacular third-person action in solo or multiplayer modes.

Why similar: Wargame 20.1%, Co-op 18.7%, PvE 13.8%, Multiplayer 12.2%, Space 10.8%

Why You'll Like It: Its co-op Operations mode nails the feeling of cutting through massive alien hordes with a militaristic sci-fi squad.

Space Hulk: Deathwing - Enhanced Edition is a First-Person Shooter based on Games Workshop’s cult classic board game set in Warhammer 40,000 universe. Expanding upon the original game, and featuring a host of new content, new features and a richer multiplayer mode.

Why similar: Co-op 18.8%, FPS 18%, Online Co-Op 16.3%, Shooter 10.5%, Multiplayer 8.6%

Why You'll Like It: It offers slow, heavy co-op FPS combat as elite soldiers push through claustrophobic corridors packed with overwhelming alien enemies.

Tom Clancy's Rainbow Six® Extraction is a tactical, co-op, PvE first-person shooter where you and your squad face an evolving alien threat. Teamwork, tactics, and flawless execution are key to your survival.

Why similar: Online Co-Op 19%, FPS 17.5%, PvE 12.3%, Shooter 9.2%, Aliens 8%

Why You'll Like It: It blends careful co-op FPS teamwork, class abilities, and alien-infested objective runs in a way that overlaps well with Extermination's PvE focus.

Ripout is an online Co-Op horror FPS that will have players fight their way through procedurally generated derelict ships filled with mutants capable of reconfiguring their alien bodies. Survive with your trusty Pet Gun companion, collect loot, and customize your character to fit your playstyle.

Why similar: Online Co-Op 17.7%, Aliens 15.8%, FPS 14.7%, Space 10.1%, PvE 9.5%

Why You'll Like It: It is another co-op sci-fi FPS about pushing through hostile ship environments while fighting relentless mutated creatures as a team.

Exoprimal is an online, team-based action game that pits humanity's cutting-edge exosuit technology against history's most ferocious beasts – dinosaurs.​​

Why similar: FPS 18.2%, Sci-fi 16.7%, Shooter 16.5%, Online Co-Op 12.7%, PvE 12.4%

Why You'll Like It: This objective-driven team shooter is built around coordinated fights against absurdly large enemy waves and has a similar high-intensity PvE rhythm.

GTFO is a hardcore cooperative horror shooter that throws you from gripping suspense to explosive action in a heartbeat. Stealth, strategy, and teamwork are necessary to survive in your deadly, underground prison. Work together or die together.

Why similar: Online Co-Op 24.6%, FPS 18.6%, Co-op 17.8%, Multiplayer 11.5%, Shooter 11.2%

Why You'll Like It: If you want a harsher, more tactical take on squad-based sci-fi FPS missions in monster-infested spaces, this is an excellent match.

Battle for survival against endless alien hordes with your friends! The Anacrusis is a first-person shooter that dynamically adjusts difficulty to you. Experience intense 1-4 player co-op action or play as the aliens and stop your friends in 1-8 player Versus mode. Full Steam Workshop support!

Why similar: FPS 16.7%, Co-op 15.6%, Space 14.2%, PvE 13.8%, Sci-fi 10.8%

Why You'll Like It: This co-op sci-fi FPS centers on surviving alien swarms aboard a starship with teamwork, gadgets, and constant horde pressure.

Co-operative top-down shooter game available for free. An epic bug hunt featuring a unique blend of co-op play and squad-level tactics.

Why similar: Class-Based 24.8% ★, Aliens 19.4%, Co-op 12.9%, PvE 10.7%, Sci-fi 9.1%

Why You'll Like It: Even from a top-down view, its mission-based squad play and bug-hunt firefights strongly match the co-op PvE appeal of Extermination.

Take back the city of Tertium from hordes of bloodthirsty foes in this intense and brutal action shooter. Warhammer 40,000: Darktide is the new co-op focused experience from the award-winning team behind the Vermintide series. As Tertium falls, Rejects Will Rise.

Why similar: Class-Based 25.5% ★, FPS 13.8%, Co-op 13.5%, PvE 10.8%, Combat 9%

Why You'll Like It: While more melee-heavy, it still delivers objective-based co-op missions, class synergy, and desperate battles against overwhelming enemy numbers.

It's a fight for the future of the planet between the Ravagers, a merciless swarm of alien invaders, and the Earth Defense Force (EDF) in this third-person shooter.Play as four different classes in over 80 missions with a range of 800 weapons at your disposal.Co-op play supported.

Why similar: Aliens 25.9%, Online Co-Op 21.4%, Co-op 19.9%, Sci-fi 10.9%, Action 7.4%

Why You'll Like It: It offers older but still excellent co-op giant-insect warfare with the same gleefully overwhelmed-against-the-swarm energy.

Thousands of giant insects and aliens once again ravage the earth, and only the Earth Defense Force can stop them.

Why similar: Online Co-Op 26.9%, Co-op 25.6%, Aliens 15.2%, Action 14.3%, Sci-fi 11.5%

Why You'll Like It: Though dated, it's still a solid squad shooter built around fighting enormous alien insect hordes in urban warzones.

Lead the Mobile Infantry in this RTS game set in the Starship Troopers film universe. Balance your army composition with a diverse set of unit types, overcome line-of-sight and line-of-fire challenges through tactical positioning, and use special abilities to smash the Arachnid hordes!

Why similar: Wargame 45.5%, Sci-fi 26.6%, Aliens 21.9%, Singleplayer 6%

Why You'll Like It: It is the best same-universe alternative on Steam, though it delivers the bug war fantasy through RTS command instead of co-op FPS combat.

HELLDIVERS™ is a hardcore, cooperative, twin stick shooter. As part of the elite unit called the HELLDIVERS, players must work together to protect SUPER EARTH and defeat the enemies of mankind in an intense intergalactic war.

Why similar: Online Co-Op 34%, Co-op 26.6%, Multiplayer 10.4%, Sci-fi 9.8%, Space 7.9%

Why You'll Like It: The perspective is different, but the satirical military tone, friendly-fire chaos, bug extermination, and teamwork are all extremely on-brand.

You & your friends are the deadliest killers in the galaxy – the US Colonial Marines. It’s up to you to not just survive, but wipe out the Xeno infestation.

Why similar: Aliens 23.6%, FPS 16.8%, Co-op 12.6%, Sci-fi 8.7%, Space 8.4%

Why You'll Like It: Despite its flaws, it is still a marine-vs-xenomorph co-op FPS with familiar corridor fights and bug-hunt atmosphere.

S.B.T.F. is a very hard arcade-style / rogue-like / perma-death first person shooter. You play as Marines who must brave dark, claustrophobic and terrifyingly intense Space Beast infested spacecraft in order to extract critical data and lucrative upgrades. Can you make it out alive?

Why similar: Aliens 23.9%, Co-op 18.8%, FPS 18.7%, Sci-fi 8.8%, Space 7.9%

Why You'll Like It: It is a tense co-op sci-fi shooter about boarding dangerous ships, surviving close-quarters alien threats, and making it out alive together.

Save the world without hope. Year 2040. An action TPS where you will become one of the EDF soldiers and fight against the invaders from outer space which ruined the world. In the world settings which differs from the original "EARTH DEFENSE FORCE" series, more than 50 missions in five difficulties await for your challenge.

Why similar: Aliens 20.8%, Class-Based 18.7% ★, Online Co-Op 14.9%, Action 14.4%, Co-op 13.4%

Why You'll Like It: This spin-off keeps the co-op sci-fi bug-hunting fantasy intact while feeling a bit more grounded than mainline EDF.

Sanctum 2 is the sequel to the world’s first Tower Defense/FPS hybrid game. Pick from four unique character classes and embark on a mission to protect the oxygen-producing Cores from hordes of deadly aliens who are threatened by their existence.

Why similar: FPS 25.1%, Co-op 20.4%, Online Co-Op 14%, Sci-fi 8.7%, Aliens 7.7%

Why You'll Like It: Its mix of first-person shooting and building defenses echoes Extermination's fortify-and-hold loop surprisingly well.

In KILLING FLOOR 2, players descend into continental Europe after it has been overrun by horrific, murderous clones called Zeds that were created by rogue elements of the Horzine Corporation. 6-player Co-Op & 12-player VS Zed-slaughtering mayhem.

Why similar: Online Co-Op 21.4%, FPS 18.2%, Co-op 16.9%, Multiplayer 11.8%, Shooter 11.7%

Why You'll Like It: This is a great pick if your favorite part is simply unloading on waves of fast, deadly enemies with a specialized co-op squad.

Jump Space (formerly Jump Ship) is a mission based co-op PvE for 1-4 players, where you are the crew of a spaceship. Transition seamlessly from crewing the ship to on-foot exploration and space walks. Explore, upgrade, and survive intense encounters in deep space together.

Why similar: Co-op 18.7%, Space 16.1%, FPS 15.5%, PvE 13.8%, Sci-fi 9.9%

Back 4 Blood is a thrilling cooperative first-person shooter from the creators of the critically acclaimed Left 4 Dead franchise. Experience the intense 4 player co-op narrative campaign, competitive multiplayer as human or Ridden, and frenetic gameplay that keeps you in the action.

Why similar: Online Co-Op 25.6%, FPS 17.8%, Co-op 15%, Multiplayer 13.2%, Shooter 11.4%

Why You'll Like It: Its modernized class builds, objective-based co-op runs, and heavy swarm management make it a natural fit for horde-shooter fans.

UPDATE 28 AVAILABLE - Interstellar Marines is an immersive tactical sci-fi First Person Simulator in the making, offering a unique blend of tactical gameplay, dynamic environments and non-scripted AI. Play Singleplayer or Co-op/PvP on servers around the world.

Why similar: FPS 21.4%, Co-op 18.3%, Sci-fi 12.1%, Multiplayer 11.4%, Shooter 8.8%

Why You'll Like It: This slower, more tactical sci-fi FPS still scratches the itch for coordinated marine-style co-op shooting in hostile futuristic settings.

Lock and load into the Starship Troopers universe and join the Mobile Infantry in the most realistic depiction of war ever made! Experience an original story in this action-packed, first-person retro shooter. Would you like to know more?

Why similar: Aliens 21.2%, Sci-fi 20.9%, FPS 13.1%, Shooter 11.6%, Space 11.4%

Set in the zombie apocalypse, Left 4 Dead 2 is a co-operative action horror FPS takes you and your friends through the cities, swamps and cemeteries of the Deep South, from Savannah to New Orleans across five expansive campaigns.

Why similar: Co-op 24.7%, FPS 22.7%, Online Co-Op 18.2%, Multiplayer 13.9%, Shooter 10.5%

Why You'll Like It: It remains one of the purest examples of co-op horde FPS design, with strong teamwork and constant pressure even if the theme is different.

Species: Unknown is a 1 to 4 players co-op survival horror. Complete high-risk missions aboard an abandoned ship while being hunted by an unknown creature. Survive and upgrade your gear to face each new threat that lurks in the dark.

Why similar: Aliens 19.5%, Online Co-Op 19%, FPS 11%, PvE 9.2%, First-Person 8.1%

Pick a character and team up with three friends ‘cause it’s time to save the world. Experience intense FPS action as you obliterate hordes of terrifying monsters! You may not be on the best team of mercenaries, but you are… a Toxic Commando!

Why similar: Online Co-Op 21.3%, FPS 17.2%, PvE 13%, Shooter 11.6%, Co-op 10.1%

Sequel to the best-seller ​The Red Solstice​. Plan your strategy and infiltrate a real-time tactical battlefield - alone or with up to 7 squad members. Can you demonstrate the combat prowess to survive and secure a future for humanity?

Why similar: Aliens 30.4%, Online Co-Op 20.1%, Co-op 17.2%, Sci-fi 15.5%, Multiplayer 14.8%

Why You'll Like It: It trades first-person action for tactical squad control, but the sci-fi atmosphere and desperate co-op fights against alien hordes are very similar.

Void Crew is a Chaotic, Co-op Roguelite game for 1 to 6 players: Outfit your spaceship and crew for thrilling quests, brave fierce enemies in Space Battles... and try not to panic!

Why similar: Co-op 22.2%, Online Co-Op 16.4%, Space 15.9%, Multiplayer 14.4%, PvE 10.5%

Lost Planet 2, the sequel to Lost Planet™: Extreme Condition, the landmark third-person shooter that sold over 2.3 million units worldwide, is now available on Steam!

Why similar: Co-op 31.5%, Sci-fi 16.1%, Online Co-Op 15%, Multiplayer 10.1%, Aliens 10%

Why You'll Like It: This co-op sci-fi action shooter captures the feel of military teams battling huge alien threats across large-scale hostile environments.

A fast paced multiplayer shooter that pits aliens against humans in a strategic and action-packed struggle for survival!

Why similar: FPS 23.3%, Aliens 19.2%, Multiplayer 15.8%, Sci-fi 11.3%, Co-op 7.1%

Deadzone: Rogue is a roguelite FPS set in space. Blast through swarms of hostile machines, combine powerful augments and elements to forge your build, and grow stronger with each run — solo or in co-op.

Why similar: Online Co-Op 24.2%, FPS 20.7%, PvE 14.7%, Sci-fi 11.5%, Shooter 10.9%

Silica blends FPS and RTS in epic, photorealistic battles. Choose to fight on the ground or command from above as humans or aliens. Dive into thrilling multiplayer combat or master strategic command. Are you ready to survive and conquer?

Why similar: Aliens 19.7%, FPS 16%, Multiplayer 10.4%, Sci-fi 10%, Shooter 9.7%

Get ready for the apocalypse! Shatterline is a high-octane single-player FPS adventure where Earth’s survival hangs in the balance. Pick a unique operator and combat the alien plague!

Why similar: FPS 14.8%, PvE 11.1%, Sci-fi 10.3%, Shooter 10%, Online Co-Op 9.8%

The co-op open-world space sim where everyone has a role! Pilot the ship. Reroute power. Launch nukes. Explore alien planets. Research new talents. Work together to find the Lost Colony! ...or just deliver some biscuits

Why similar: Class-Based 18.2% ★, Co-op 12.8%, Space 12.4%, Online Co-Op 11%, PvE 10%

Squad is a tactical FPS that provides authentic combat experiences through teamwork, communication, and realistic combat. It bridges the gap between arcade shooter and military realism with 100-player battles, combined-arms warfare, and base building.

Why similar: Wargame 19.4%, FPS 14.6%, Online Co-Op 12%, Realistic 10.3%, PvE 10.1%

Use Nukes, Electricity, Heat Rays and powerful Minions in this wave-based first person shooter providing endless hours of Ghost-slaying entertainment, solo or Co-Op. Only Ghosts stand in the way of your invasion of Earth.

Why similar: Class-Based 18.9% ★, FPS 15.1%, Aliens 10.5%, Shooter 10.4%, Sci-fi 7.6%

Drop into the gripping journey of Aliens: Dark Descent, a squad-based, single-player action game in the iconic Alien franchise. Lead your soldiers in real-time to stop a new and terrifying kind of Xenomorph outbreak on Planet Lethe.

Why similar: Aliens 34.6%, Sci-fi 21.8%, Space 17.4%, Action 9.4%, Combat 8.6%

The RTS/FPS phenomenon has moved into space! Build your base on an asteroid, command fleets of starships for epic battles, pilot fighters, mine and trade resources, assemble robots to defend or assault other stations. Take sole command or share the glory as you fight for control of the quadrant.

Why similar: Base Building 20.5%, Space 15.8%, FPS 15.1%, Co-op 10.5%, Multiplayer 9.4%

Join 200-player battles in Over The Top: WWI - an intense shooter set in the gritty backdrop of World War I. Pick your class, choose from a vast arsenal, including rifles, artillery, airplanes and powerful tanks, and experience the chaos of fully destructible battlefields.

Why similar: FPS 24.4%, Multiplayer 17.3%, Shooter 15.5%, Realistic 13.7%, PvE 9.1%

From commanding the battle standing on the bridge of your flagship all the way down to tactical infantry firefights - AFF brings together all the combat you ever wanted in a rich science fiction setting. Boarding, pilotable capital ships, deep weapon customization and full AI support included!

Why similar: FPS 23.8%, Space 20.9%, Sci-fi 16.8%, Multiplayer 13.8%, First-Person 7%

The year is 3015. The battlefields are dominated by war machines known as BattleMechs. Level entire cities and decimate the enemy in your BattleMech. Follow a quest for glory and revenge. Manage an expanding mercenary company. Fight alongside your friends with a four-player PvE co-op.

Why similar: FPS 17.8%, Online Co-Op 17.4%, Co-op 16.3%, Shooter 11.2%, First-Person 9%

Cut through fungal aliens in this hyper-customizable, mission based looter shooter. Hundreds of hand-crafted upgrades, 4-player co-op, and a little roach man. What’s not to love?

Why similar: Online Co-Op 20.9%, FPS 20.3%, Co-op 11.9%, Shooter 10.8%, PvE 10.6%

Command Mobile Outpost and take XEN Firearm to venture deep into the Signet surveillance off-limit area. Collect unique Weapon Units. Amp up the firepower of the Outpost that fights with you. This is an FTD game - FPS, Tower Defense, Base Building and much more all at the same time.

Why similar: Base Building 23.4%, FPS 20%, Co-op 18.5%, Sci-fi 13.6%, Shooter 11.3%

Galactic Force is a sci-fi FPS loaded with frantic action and lots of firepower.

Why similar: FPS 15%, Arena Shooter 14.8%, Aliens 13.6%, Co-op 11.1%, Sci-fi 9.1%

Stranded on an alien planet, you must defend your Powercore! Use your weapons to fight hordes of alien enemies and strategically use traps in this new FPS tower-defense survival game!

Why similar: Co-op 18.8%, Aliens 17.2%, Multiplayer 12.7%, FPS 9.9%, Sci-fi 8.5%

Co-operative multiplayer game and complete code base available for free.

Why similar: Co-op 20.2%, Aliens 18.9%, Online Co-Op 15.4%, Class-Based 10.7% ★, Multiplayer 9.7%

Rocket Squad is a team-based first-person shooter. Infiltrate perilous planets, gather resources, and return safely to your shelter. Utilize each character's unique abilities and strategically form your team to restore order to the universe.

Why similar: Online Co-Op 20.6%, FPS 16.4%, Co-op 14.5%, PvE 13.1%, Space 10.7%

StarRupture is a first-person open world base-building game with advanced combat and tons of exploration. Play alone or in a group on this sublime and ever-changing planet, extract and manage resources, create your complex industrial system and fight off hordes of alien monsters.

Why similar: Base Building 23.1%, Co-op 18.3%, Online Co-Op 17.2%, Sci-fi 12.5%, Multiplayer 11.9%

Wildgate is a PvPvE multiplayer shooter that blends tactical ship-to-ship combat with fast-paced first-person action. Evade deadly environmental hazards, search for powerful weapons and ship upgrades, and be the first crew to escape with the Artifact... or the last crew left flying.

Why similar: Online Co-Op 14.6%, FPS 13.7%, Space 13.6%, Co-op 13.1%, Multiplayer 9.3%

HELLFRONT is an intense top-down shooter. Conquer ground, build a base, and command your troops in battle! Play PvP or beat the campaign co-op or solo.

Why similar: Aliens 29.3%, Co-op 19.3%, Sci-fi 17.6%, Multiplayer 14.9%, Shooter 9.1%

It’s 2091 and megacorp Horzine has produced the ultimate army: an obedient horde of bioengineered monsters called zeds. Now, join the rebel group Nightfall in this co-op action/horror FPS that puts you and your teammates in a battle for the future of humanity.

Why similar: FPS 18.9%, Co-op 16.4%, PvE 13%, Shooter 10.5%, First-Person 8.2%

Fortified is an explosive strategy shooter where players will defend the Earth against a menacing Martian invasion in the 1950s. Play as one-of-four pulp inspired heroes as they fight swarms of terrifying robots with an arsenal of Cold War era weapons and experimental technology.

Why similar: Action 63.4%, Co-op 11.6%, Aliens 10.1%, Multiplayer 5.1%, Online Co-Op 3.8%