- #1 Aliens: Fireteam Elite
97% matchMostly Positive80% of 27,172 reviews2021
Dev: Cold Iron Studios
Windows
Median: 4.7 hrsMean: 17.8 hrs≥1hr: 87%
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 21.1%, Co-op 19.1%, Online Co-Op 16.5%, Co-op Campaign 10.8% ★, Shooter 10.1%
Why You'll Like It: This is the closest match to Earthfall, featuring intense co-op combat against swarms of aliens in a sci-fi setting.
- #2 Starship Troopers: Extermination
96% matchMostly Positive79% of 33,422 reviews2024
Dev: Offworld
Windows
Median: 4.9 hrsMean: 19.2 hrs≥1hr: 86%
Starship Troopers: Extermination is an up to 16-player co-op FPS that puts you on the far-off frontlines of an all-out battle against the Bugs! Squad up, grab your rifle, and do your part as an elite Deep Space Vanguard Trooper to take back planets from the Arachnid threat!
Why similar: Aliens 18.9%, Online Co-Op 18.5%, FPS 17.2%, Co-op 15.4%, Shooter 8.1%
Why You'll Like It: It captures the massive scale of alien invasions with large-scale cooperative defensive gameplay.
- #3 World War Z
96% matchVery Positive82% of 32,845 reviews2021
Dev: Saber Interactive Inc
Windows
Median: 7.7 hrsMean: 35.2 hrs≥1hr: 91%
World War Z is a heart-pounding coop third-person shooter for up to 4 players featuring massive swarms of hundreds of zombies, focused on fast-paced, gruesomely spectacular action.
Why similar: Online Co-Op 23.4%, Co-op 16.8%, Zombies 13.2%, FPS 9.9%, Shooter 8.5%
Why You'll Like It: It offers the same fast-paced, horde-clearing gameplay loop found in Earthfall but with a focus on massive zombie swarms.
- #4 Deep Rock Galactic
95% matchOverwhelmingly Positive97% of 380,437 reviews2020
Dev: Ghost Ship GamesPub: Coffee Stain Publishing
Windows
Median: 14.1 hrsMean: 76.4 hrs≥1hr: 94%
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: Co-op 32.2%, FPS 26.8%, Shooter 12.5%, First-Person 7.5%, Action 5.9%
Why You'll Like It: A premier co-op shooter that excels at objective-based missions and team-dependent survival mechanics.
- #5 Back 4 Blood
94% matchMixed69% of 73,371 reviews2021
Dev: Turtle Rock StudiosPub: Warner Bros. Games
Windows
Median: 8.2 hrsMean: 44.1 hrs≥1hr: 91%
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 20.1%, FPS 15.7%, Co-op 12.8%, Gore 10%, Zombies 9.3%
Why You'll Like It: Developed by the creators of Left 4 Dead, it provides a polished, modern take on the four-player co-op shooter formula.
- #6 Warhammer 40,000: Darktide
94% matchMostly Positive72% of 139,437 reviews2022
Dev: Fatshark
Windows
Median: 23.9 hrsMean: 104.4 hrs≥1hr: 96%
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: Co-op Campaign 22.6% ★, FPS 16.1%, Co-op 15.4%, Gore 10%, Violent 8.9%
Why You'll Like It: A visceral co-op shooter that emphasizes intense melee and ranged combat against overwhelming odds.
- #7 Killing Floor 2
93% matchVery Positive88% of 129,477 reviews2016
Dev: Tripwire Interactive
Windows
Median: 9.8 hrsMean: 86.0 hrs≥1hr: 92%
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 17%, FPS 16.1%, Co-op 14.6%, Gore 12.5%, Shooter 8.3%
Why You'll Like It: A classic wave-based shooter that focuses on gore, team synergy, and surviving increasingly difficult enemy encounters.
- #8 GTFO
92% matchVery Positive84% of 66,909 reviews2021
Dev: 10 Chambers
Windows
Median: 6.8 hrsMean: 27.2 hrs≥1hr: 92%
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 21.8%, FPS 18.5%, Co-op 17.1%, Shooter 8.9%, Gore 6.6%
Why You'll Like It: A hardcore, atmospheric co-op shooter that rewards stealth and extreme team coordination in dangerous environments.
- #9 EARTH DEFENSE FORCE 5
91% matchVery Positive94% of 11,551 reviews2019
Dev: SANDLOTPub: D3PUBLISHER
Windows
Median: 13.9 hrsMean: 41.3 hrs≥1hr: 93%
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 23.8%, Aliens 20.8%, Co-op 18%, Action 12.7%, Shooter 9%
Why You'll Like It: The ultimate alien-slaying experience that captures the chaotic fun of fighting massive insectoid swarms.
- #10 Warhammer: Vermintide 2
90% matchVery Positive85% of 147,746 reviews2018
Dev: Fatshark
Windows
Median: 8.2 hrsMean: 48.7 hrs≥1hr: 84%
The critically acclaimed Vermintide 2 is a visually stunning and groundbreaking melee action game pushing the boundaries of the first person co-op genre. Join the fight now!
Why similar: Co-op 29.7%, Online Co-Op 23.4%, Gore 13.7%, FPS 13.6%, Multiplayer 7.7%
Why You'll Like It: While fantasy-themed, it provides the definitive cooperative horde-clearing experience that inspired many modern shooters.
- #11 Tom Clancy’s Rainbow Six® Extraction
89% matchMixed66% of 3,183 reviews2023
Dev: Ubisoft MontrealPub: Ubisoft
Windows
Median: 2.8 hrsMean: 11.0 hrs≥1hr: 72%
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: FPS 25%, Online Co-Op 24.2%, Shooter 10.5%, Co-op 9.3%, Aliens 8.9%
Why You'll Like It: A tactical PvE shooter that requires careful coordination to survive against an evolving alien threat.
- #12 Killing Floor 3
88% matchMixed44% of 23,814 reviews2025
Dev: Tripwire Interactive
Windows
Median: 12.1 hrsMean: 44.2 hrs≥1hr: 93%
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 24.2%, Co-op 20.4%, Gore 11%, Shooter 10.8%, Zombies 8.7%
Why You'll Like It: The latest evolution of the wave-based survival shooter, offering modern graphics and refined combat mechanics.
- #13 Dead Effect 2
89% matchMostly Positive73% of 2,320 reviews2016
Dev: BadFly Interactive, a.s.Pub: App Holdings
Windows · Mac
Median: 4.7 hrsMean: 9.9 hrs≥1hr: 90%
Dead Effect 2 is the newest addition to the acclaimed Dead Effect franchise. This action sci-fi shooter is looking to push the boundaries of first-person shooters to new levels with slick graphics, rich narrative and RPG elements.
Why similar: FPS 21.9%, Co-op 20.3%, Zombies 9.2%, Gore 8.1%, Action 7.5%
Why You'll Like It: A sci-fi horror shooter that blends RPG elements with fast-paced co-op combat.
- #14 Space Hulk: Deathwing Enhanced Edition
87% matchMostly Positive72% of 10,939 reviews2018
Dev: Streum On StudioPub: Focus Entertainment
Windows
Median: 3.0 hrsMean: 8.2 hrs≥1hr: 82%
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 19.5%, FPS 19.2%, Online Co-Op 15.3%, Shooter 8.9%, Action 8.1%
Why You'll Like It: It delivers a claustrophobic, high-stakes sci-fi experience where squad positioning is key to survival.
- #15 Aliens vs. Predator™
86% matchVery Positive91% of 21,711 reviews2010
Dev: RebellionPub: SEGA
Windows
Median: 4.1 hrsMean: 13.7 hrs≥1hr: 77%
Survive, hunt and prey in the deadly jungles and swamps in distinctly new and thrilling first person gameplay.
Why similar: Aliens 22.4%, FPS 21.8%, Gore 9%, Action 7.3%, Co-op 7%
Why You'll Like It: A classic title that captures the tension and horror of fighting against iconic alien creatures.
- #16 No More Room in Hell 2
83% matchMixed57% of 28,679 reviews2026
Dev: Torn Banner Studios
Windows
Median: 10.1 hrsMean: 27.0 hrs≥1hr: 92%
No More Room in Hell 2 is an intense 8 player zombie shooter. Overcome the endless undead. Avoid infection. Survive hell together.
Why similar: Online Co-Op 21.8%, Co-op 17.5%, FPS 16.3%, Zombies 9.2%, Shooter 7.9%
Why You'll Like It: A modern co-op survival shooter that emphasizes tension and resource management in a post-apocalyptic setting.
- #17 Aliens: Colonial Marines Collection
86% matchMixed62% of 12,256 reviews2012
Dev: Gearbox SoftwarePub: SEGA
Windows
Median: 5.1 hrsMean: 15.3 hrs≥1hr: 76%
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 22.7%, FPS 20.8%, Co-op 15.1%, Online Co-Op 7.9%, Action 7.5%
Why You'll Like It: A squad-based shooter that leans heavily into the classic sci-fi aesthetic of the Alien franchise.
- #18 Dead Effect
85% matchMostly Positive73% of 3,783 reviews2014
Dev: BadFly Interactive, a.s.
Windows · Mac
Median: 4.6 hrsMean: 11.4 hrs≥1hr: 90%
Fight for your life in the INDIE SCI-FI FPS game fit for both casual and hard-core gamers with a passion for hunting down hordes of zombies. Prepare yourselves for the incoming nightmare!
Why similar: FPS 30.7%, Zombies 13%, Shooter 9.8%, Gore 9.5%, Action 8.9%
Why You'll Like It: A solid sci-fi shooter that provides a straightforward, action-oriented experience similar to Earthfall.
- #19 UNLOVED
84% matchMostly Positive73% of 2,157 reviews2016
Dev: BlueEagle ProductionsPub: Paul Schneider
Windows
Median: 3.2 hrsMean: 8.3 hrs≥1hr: 73%
Based on the community award-winning Doom2 mod with the same name by the same creator, UNLOVED is reimagined in the Unreal Engine 4 to bring forth the unspeakable terror in new ways. Play coop with your friends, increase your skills, mod your weapons and face the horror that this unearthly place holds...
Why similar: FPS 22.8%, Gore 20%, Co-op 18.4%, Action 9%, Horror 7%
Why You'll Like It: A co-op horror shooter that focuses on intense, claustrophobic combat and dark, atmospheric level design.
- #20 Space Beast Terror Fright
82% matchVery Positive92% of 1,795 reviews2022
Dev: nornware AB
Windows
Median: 1.9 hrsMean: 5.2 hrs≥1hr: 64%
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 19.7%, FPS 19.6%, Co-op 19.1%, Gore 8.1%, Action 7%
Why You'll Like It: A high-tension, claustrophobic shooter that mimics the feeling of being hunted in a dark, alien-filled ship.
- #21 Species: Unknown
80% matchVery Positive94% of 11,374 reviews2025
Dev: WanadevStudio
Windows
Median: 5.0 hrsMean: 8.4 hrs≥1hr: 91%
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: Online Co-Op 25.6%, Aliens 21.9%, FPS 16%, Shooter 8.1%, First-Person 7%
Why You'll Like It: An atmospheric horror game that focuses on cooperative survival against mysterious alien entities.
- #22 Interstellar Marines
84% matchMixed53% of 7,877 reviews2013
Dev: Zero Point Software
Windows · Mac · Linux
Median: 48 minMean: 6.8 hrs≥1hr: 45%
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 27.5%, Co-op 22.9%, Online Co-Op 9.8%, Action 9.1%, Shooter 9.1%
Why You'll Like It: A tactical sci-fi shooter that focuses on realistic movement and squad-based objective completion.
- #23 EARTH DEFENSE FORCE: IRON RAIN
82% matchMixed59% of 1,531 reviews2019
Dev: YUKE'SPub: D3PUBLISHER
Windows
Median: 5.0 hrsMean: 12.8 hrs≥1hr: 92%
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: Action 19.7%, Aliens 18.6%, Online Co-Op 15.2%, Co-op 14.9%, Gore 12.1%
Why You'll Like It: A more modern, action-heavy entry in the EDF series that focuses on high-octane alien destruction.
- #24 Deadfall Adventures
81% matchMostly Positive73% of 2,644 reviews2013
Dev: The Farm 51Pub: THQ Nordic
Windows · Linux
Median: 5.7 hrsMean: 7.3 hrs≥1hr: 92%
Deadfall Adventures is an action-driven first-person shooter, spiced up with elements from action-adventure games. Become an adventurer, hunt for treasures, explore unknown regions of the world and rescue the damsel in distress from the clutches of enemies, both earthly and not-so-earthly.
Why similar: FPS 36.6%, Shooter 13.4%, Action 13.2%, Co-op 10.2%, First-Person 8.3%
Why You'll Like It: An action-heavy shooter that features objective-based exploration and combat encounters.
- #25 Alien Swarm: Reactive Drop
79% matchVery Positive95% of 23,827 reviews2017
Dev: Reactive Drop Team
Windows
Median: 1.7 hrsMean: 10.0 hrs≥1hr: 63%
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: Aliens 36%, Co-op 29.8%, Shooter 15.9%, First-Person 9.9%, Sci-fi 8.4%
Why You'll Like It: A top-down tactical shooter that emphasizes team roles and objective completion in an alien-infested facility.
- #26 Stellar Survivor
81% matchMixed66% of 175 reviews2019
Dev: Sticks & Stones
Windows
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 23%, Aliens 16.9%, FPS 12.4%, Violent 10.2%, Multiplayer 8.5%
Why You'll Like It: A sci-fi survival shooter that incorporates co-op elements and resource management.
- #27 DESOLATE
79% matchMixed66% of 8,065 reviews2019
Dev: NeargaPub: HypeTrain Digital
Windows
Median: 3.6 hrsMean: 10.4 hrs≥1hr: 89%
DESOLATE is a first person horror survival experience. Form a research team with up to 4 players and explore an open world filled with mysteries and unsolved questions, or do it all on your own.
Why similar: Survival 21%, Gore 20.6%, Zombies 17.3%, Horror 17%, First-Person 13.6%
Why You'll Like It: A survival-focused game that offers co-op exploration and combat in a dangerous, atmospheric world.
- #28 Unsafe Express
78% matchMixed56% of 285 reviews2024
Dev: OnSkull Games
Windows
Unsafe Express is a cooperative first-person survival horror game for 1-4 players. Navigate through space stations, collect materials and outlast your enemies! Choose your objective based on complexity levels, then cast your vote. Gather items, exterminate hostiles, fulfill missions and repeat!
Why similar: Online Co-Op 19.1%, Aliens 18.2%, Co-op 16.2%, FPS 13.8%, Shooter 6.7%
Why You'll Like It: A co-op horror survival game that emphasizes team communication to overcome terrifying threats.
- #29 Sker Ritual
76% matchVery Positive82% of 6,013 reviews2024
Dev: Wales InteractivePub: Skybound Games
Windows
Median: 3.7 hrsMean: 7.6 hrs≥1hr: 88%
Tear through endless waves of supernatural enemies in this co-op horror horde shooter. Play solo or with up to 4 players, unleash god-like Miracle powers, supercharge your arsenal, and survive devastating boss encounters on Sker Island.
Why similar: Co-op 23.2%, Online Co-Op 17%, FPS 16.7%, Shooter 8.5%, Zombies 6.6%
- #30 RIPOUT
77% matchMixed60% of 1,212 reviews2024
Dev: Pet Project GamesPub: 3D Realms
Windows
Median: 1.7 hrsMean: 5.3 hrs≥1hr: 62%
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 22.9%, FPS 21.6%, Aliens 18.2%, Shooter 9.9%, First-Person 6.9%
- #31 Killing Floor: Incursion
78% matchMixed50% of 1,068 reviews2017
Dev: Tripwire Interactive
Windows
Median: 1.1 hrsMean: 8.8 hrs≥1hr: 54%
Killing Floor: Incursion is a fully-realized, multi-hour, story-driven adventure with an additional endless mode. In solo or co-op mode, travel diverse environments, from creepy farmhouses to the catacombs of Paris, in order to uncover who... or what is behind the Zed menace.
Why similar: FPS 16.5%, Co-op 14.4%, Gore 13%, Violent 11.2%, Online Co-Op 9.4%
Why You'll Like It: A VR-based horror shooter that brings the intense combat of the series into an immersive first-person perspective.
- #32 Aliens vs. Ghosts
75% matchVery Positive90% of 639 reviews2022
Dev: Sayan
Windows
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: FPS 25.3%, Shooter 14.1%, Aliens 13.8%, Action 11.8%, Co-op 11%
- #33 Zombie City Together
74% matchMostly Positive74% of 73 reviews2026
Dev: cnsgames
Windows
Take on a city overrun by zombies with 1 to 4 players online — co-op or PvP! Hold the line against running, leaping, spitting hordes. Fight by day, hunt in the dark of night. Tear off limbs and unlock cosmetics with every kill. Stand together... or hunt each other down.
Why similar: Online Co-Op 23%, FPS 20.4%, Co-op 17.8%, Zombies 10%, Shooter 7.8%
- #34 Left 4 Dead
75% matchOverwhelmingly Positive96% of 68,256 reviews2008
Dev: Valve
Windows
Median: 3.5 hrsMean: 65.9 hrs≥1hr: 70%
From Valve (the creators of Counter-Strike, Half-Life and more) comes Left 4 Dead, a co-op action horror game for the PC and Xbox 360 that casts up to four players in an epic struggle for survival against swarming zombie hordes and terrifying mutant monsters.
Why similar: Co-op 21.6%, FPS 19.7%, Zombies 14.3%, Online Co-Op 14.1%, Shooter 7.2%
- #35 EARTH DEFENSE FORCE 4.1 The Shadow of New Despair
74% matchVery Positive95% of 10,557 reviews2016
Dev: SANDLOTPub: D3PUBLISHER
Windows
Median: 4.9 hrsMean: 21.3 hrs≥1hr: 89%
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 24%, Co-op 22.7%, Online Co-Op 22.5%, Action 10.5%, Shooter 6.2%
- #36 Aliens: Fireteam Elite 2
71% matchMixed62% of 3,871 reviews2026
Dev: Cold Iron StudiosPub: Daybreak Game Company
Windows
Median: 15.0 hrsMean: 21.5 hrs≥1hr: 94%
This is a fight for survival. Xenomorphs swarm in overwhelming numbers. Every room could be your last.
Why similar: Co-op 24%, Shooter 19.9%, Online Co-Op 16.5%, Action 15.2%, Gore 10.8%
- #37 Alien Swarm
73% matchVery Positive95% of 21,636 reviews2010
Dev: Valve
Windows
Median: 2.3 hrsMean: 36.4 hrs≥1hr: 65%
Co-operative multiplayer game and complete code base available for free.
Why similar: Co-op 28.2%, Aliens 21.2%, Online Co-Op 19.6%, Shooter 9.4%, Multiplayer 7.3%
- #38 Eden Rising
73% matchMixed64% of 1,447 reviews2019
Dev: The Wall Productions Inc.
Windows
Median: 54 minMean: 16.2 hrs≥1hr: 47%
Brace yourself for a brand new action-packed Open World. Explore a huge world to gather materials for gear and defenses. Use everything at your disposal to defend your bases and defeat hordes of hostile monsters. Play solo or up to 8-player online!
Why similar: Co-op 33.1%, Online Co-Op 19.7%, Multiplayer 13.8%, Aliens 11.6%, Action 10.5%
- #39 The Anacrusis
72% matchMixed47% of 1,887 reviews2023
Dev: Stray Bombay
Windows
Median: 2.8 hrsMean: 6.5 hrs≥1hr: 85%
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: Co-op Campaign 23.6% ★, FPS 20.5%, Co-op 18.7%, Shooter 10.1%, Zombies 6.2%
- #40 Earth Defense Force: Insect Armageddon
73% matchVery Positive87% of 1,156 reviews2011
Dev: Vicious Cycle Software, Inc.Pub: D3PUBLISHER
Windows
Median: 2.5 hrsMean: 8.5 hrs≥1hr: 67%
Thousands of giant insects and aliens once again ravage the earth, and only the Earth Defense Force can stop them.
Why similar: Co-op 29.2%, Online Co-Op 27.3%, Action 19.5%, Aliens 13.6%, Sci-fi 5.1%
- #41 Quake 4
72% matchVery Positive88% of 4,008 reviews2011
Dev: RavenSoftPub: Bethesda Softworks
Windows
Median: 1.8 hrsMean: 6.8 hrs≥1hr: 59%
As part of the elite Rhino Squad, you must spearhead Earth’s military invasion of a hostile alien homeworld. But, in this desperate war for humanity’s survival against an unrelenting enemy, you may discover that the only way to defeat them...is to become one of them.
Why similar: FPS 36.8%, Gore 12.4%, Shooter 11.6%, Action 8.4%, Aliens 6.1%
- #42 Shatterline
68% matchMostly Positive73% of 29,161 reviews2025
Dev: Frag Lab LLC
Windows
Median: 1.9 hrsMean: 16.2 hrs≥1hr: 65%
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 26.9%, Online Co-Op 15.8%, Shooter 14.6%, Co-op 11.5%, First-Person 8.7%
- #43 Zedfest
70% matchVery Positive89% of 216 reviews2023
Dev: Diagrammet AB
Windows
Zedfest is the goriest game show ever created! A hardcore 6 player co-op third-person shooter with the goal to complete objectives while neutralizing Zeds with lots and lots of visceral gore.
Why similar: Gore 21.3%, Violent 17.6%, Action 15.8%, Co-op 12.9%, Online Co-Op 11.7%
- #44 EXOME
70% matchMostly Positive80% of 327 reviews2022
Dev: RudeFrog Studios
Windows
EXOME is a co-op sci-fi survival shooter that blends wave-based survival with open-world exploration. Battle hordes of aliens, upgrade your arsenal, and uncover the hidden truths of the deep forest. Will you face it alone or bring your friends along?
Why similar: Aliens 29.1%, Shooter 21.3%, Co-op 19.2%, Horror 10.5%, Action 10.3%
- #45 Natural Selection 2
71% matchVery Positive85% of 13,374 reviews2012
Dev: Unknown Worlds Entertainment
Windows
Median: 2.9 hrsMean: 24.2 hrs≥1hr: 85%
A fast paced multiplayer shooter that pits aliens against humans in a strategic and action-packed struggle for survival!
Why similar: FPS 31.3%, Aliens 20.3%, Multiplayer 11.3%, Co-op 9.3%, Action 7.1%
- #46 NO BACKUP
67% matchMixed68% of 1,056 reviews2026
Dev: Serundeox
Windows
Median: 1.5 hrsMean: 2.0 hrs≥1hr: 67%
Escape together or die alone. A relentless creature is hunting you in this intense co-op bodycam horror experience. Communicate. Stay quiet. Survive. Every move matters. Every sound could be your last. Made by one developer.
Why similar: Online Co-Op 23.5%, FPS 23.2%, Co-op 11.4%, Horror 9.1%, Multiplayer 7.4%
- #47 Survival Zombies The Inverted Evolution
71% matchMixed58% of 1,116 reviews2017
Dev: Racing BrosPub: ANPA.US
Windows · Mac · Linux
Median: 2.7 hrsMean: 3.9 hrs≥1hr: 80%
Survival Zombies is a bloody chaotic survival first person shooter that pits heavily armed players against humanity's greatest fear - hordes of undead.
Why similar: Gore 19.1%, Violent 16.5%, FPS 14.4%, Zombies 13.7%, Shooter 11.7%
- #48 Nuclear Nightmare
66% matchVery Positive81% of 19,279 reviews2024
Dev: BG Productions
Windows
Median: 2.4 hrsMean: 5.2 hrs≥1hr: 76%
Venture forth as part of a specialized team of fellow players tasked with retrieving classified materials, evading the black goo virus, and the nightmarish entities it has spawned. With time running out before the US government initiates a devastating nuclear strike to contain the spreading menace.
Why similar: Online Co-Op 33.9%, Co-op 22.2%, Aliens 15.6%, Horror 7.7%, First-Person 6.8%
- #49 Chased by Darkness
69% matchMostly Positive72% of 417 reviews2021
Dev: South Blue Moon
Windows
Median: 2.8 hrsMean: 9.3 hrs≥1hr: 85%
Chased by Darkness is a 1-4 players co-op survival horror. Your mission is to face supernatural entities and banish them to the spiritual plane. Explore, fight enemies and don't let the darkness reach you.
Why similar: Online Co-Op 25.1%, Co-op 19.8%, Gore 10.8%, FPS 7.9%, Horror 7.5%
- #50 The Corrupted
67% matchMixed62% of 214 reviews2026
Dev: Wizard GamesPub: Wizard Games, Star Studio
Windows
The Corrupted is a high-octane sci-fi PVE shooter defined by satisfying progression and intense boss encounters. Plunge into battlefields consumed by the Anomaly, fighting through relentless swarms, elite hunters, and colossal bosses.
Why similar: FPS 20.3%, Co-op Campaign 16.2% ★, Online Co-Op 12%, Co-op 11.7%, Shooter 10.9%
- #51 John Carpenter's Toxic Commando
66% matchMostly Positive73% of 7,235 reviews2026
Dev: Saber InteractivePub: Focus Entertainment
Windows
Median: 9.2 hrsMean: 16.3 hrs≥1hr: 93%
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 23%, FPS 20.5%, Co-op 12.3%, Shooter 11.3%, Zombies 9.3%
- #52 Fortified
70% matchMostly Positive75% of 1,738 reviews2016
Dev: Siege Camp
Windows
Median: 3.2 hrsMean: 5.0 hrs≥1hr: 89%
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 72.7%, Co-op 10.8%, Aliens 7.6%, Online Co-Op 3.2%, Multiplayer 2.6%
- #53 ZIC – Zombies in City
69% matchVery Positive91% of 192 reviews2019
Dev: Megame LLC
Windows
Control a team of 4 characters, switching between them to use their unique abilities. ZIC: Zombies In City is a first person zombie survival shooter.
Why similar: Co-op Campaign 19.7% ★, FPS 13.9%, Online Co-Op 13.6%, Co-op 11.8%, Shooter 7.6%
- #54 Zombie Army 4: Dead War
67% matchVery Positive86% of 12,185 reviews2021
Dev: Rebellion
Windows
Median: 4.6 hrsMean: 18.4 hrs≥1hr: 89%
Hitler’s hordes are back for more in this spine-chilling shooter from the makers of Sniper Elite 4! Abominable occult enemies, epic weapons and a harrowing new campaign for 1-4 players await in 1940s Europe, as you fight to save humankind from undead Armageddon!
Why similar: Co-op 25.9%, Shooter 15.5%, Zombies 13.9%, Gore 13.5%, Multiplayer 10.2%
- #55 Deep Rock Galactic: Rogue Core
65% matchMixed60% of 15,488 reviews2026
Dev: Ghost Ship GamesPub: Ghost Ship Publishing
Windows
Median: 11.1 hrsMean: 20.8 hrs≥1hr: 94%
DEEP ROCK GALACTIC: ROGUE CORE is a 1-4 player co-op shooter with sci-fi dwarves, procedurally-generated caves and random roguelike upgrades. Explore maze-like mines and blast through hordes of alien abominations — no two runs are the same. Move quickly, work together and shoot first to survive.
Why similar: FPS 23.5%, Co-op 21.5%, Online Co-Op 18.4%, Shooter 9.8%, First-Person 5.9%
- #56 Regain Earth: First Strike
68% matchVery Positive85% of 73 reviews2021
Dev: GameFlow Studios
Windows
Take the challenge of surviving waves of increasingly difficult evil MuTecs! Grab a friend to hunt and slay them. Crush each wave with randomly dropped weapons & gadgets. Earn Achievements, new maps and top ranks in this Community-driven, solo-dev project. Help shape the future of this game!
Why similar: Co-op 20.4%, Aliens 17.2%, Gore 13.3%, Shooter 12.5%, Violent 10.5%
- #57 Nation Red
68% matchVery Positive89% of 2,792 reviews2009
Dev: DiezelPower
Windows · Mac · Linux
Median: 3.5 hrsMean: 8.7 hrs≥1hr: 86%
Nation Red is an ultra fast infinite play arena-based shooter providing an exceptional close-quarter battlefield experience. Fight thousands of zombie mutants and their bosses in frantic bloody gameplay while earning close to 100 perks. Fight in Barricade, Survival or Free Play mode.
Why similar: Online Co-Op 25%, Zombies 21.6%, Co-op 12.8%, Gore 12.4%, Action 11.7%