Discounted Aliens Games on Steam
Unlike generic lists, our strategy game recommendations use a rigorous analysis of Steam user reviews to identify and feature only the best, community-validated aliens games. For those who prefer not to search, lists of the most played, top deals and best free aliens games are available at the bottom of the page.
Filters & Lists
Tower Dominion
Build and design the terrain while defending your stronghold against alien invasion in this unique Roguelike tower defense. Choose from 30 heroes, survive enemy waves, and upgrade a variety of destructive towers to hold the line!
Viscerafest
Viscerafest is a Sci-Fi Fantasy Singleplayer Arena FPS with minor Collectathon elements. Fight through hordes of aliens and eldritch monstrosities wielding a slew of powerful weapons, juggling your resources, and exploring over 23 intricately designed hand-crafted levels.
Exogate Initiative
Build and manage mankind’s first mission across the universe! Create a sprawling facility underground, recruit a diverse group of specialists from around the globe and explore mysterious new worlds through the Exogate.
Alien: Rogue Incursion VR
Alien: Rogue Incursion is an all-new action-horror VR game that transforms you into ex-Colonial Marine Zula Hendricks on a dangerous mission to the uncharted planet Purdan, featuring innovative real-life motion gameplay, a whole-body loadout, and the most cunning Xenomorphs ever encountered.
The Thing: Remastered
The Thing: Remastered is a faithful restoration of the cult-classic 2002 third-person survival horror shooter game inspired by Universal Pictures’ genre-defining 1982 film, The Thing
Uncle Chop's Rocket Shop
Come on down to Uncle Chop’s Rocket Shop, for all your roguelite spaceship repair simulation needs! WARNING: Untested genre not suitable for people with tentacles for arms or an aversion to dying horrifically. Side effects include improved reading comprehension under pressure and a furry fetish.
Starship Troopers: Extermination
Starship Troopers: Extermination is a 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!
Machinika: Atlas
Machinika: Atlas is an indie puzzle game and is the direct sequel to Machinika: Museum, you play as a museum researcher who just land on Atlas. Will you unravel the mysteries of the alien vessel? Solve cryptic puzzles to find out what happened!
Drill Core
Corporate greed meets strategic planet-mining in Drill Core! Drill to the heart of planets while managing workers, researching cutting-edge tech, and fortifying against alien attacks. Will you prioritize efficiency and risk your workers' safety, or focus on defense for survival?
Gatekeeper
Gatekeeper is a fast-paced rogue-like. Go on a quest to chase down Chaos and reclaim the stolen Heart of Time, fighting your way through relentless enemy forces. Play solo or in 4-player co-op and become the next Gatekeeper!
1000xRESIST
1000xRESIST is a thrilling sci-fi adventure. The year is unknown, and a disease spread by an alien invasion keeps you underground. You are Watcher. You dutifully fulfil your purpose in serving the ALLMOTHER, until the day you discover a shocking secret that changes everything.
Abiotic Factor
Abiotic Factor is a survival crafting experience for 1-6 players set in the depths of an underground research facility. Caught between paranormal containment failure, a military crusade, and chaos from a dozen realms, the world’s greatest minds must survive against the universe’s biggest threats.
Outcast - A New Beginning
Explore the breathtaking alien world of Adelpha, support the local Talans in their struggles and fight your way through fast-paced battles against invading robot forces in this 3rd-person, open world, action adventure sequel to the 1999 cult classic.
Contra: Operation Galuga
The legendary Contra series returns! This reimagining of the classic run-'n'-gun action game from the ‘80s features new stages, new enemies, new play mechanics, and co-op combat for up to 4 players!
Deep Rock Galactic: Survivor
DEEP ROCK GALACTIC: SURVIVOR is a single player survivor-like auto-shooter. Take on hordes of lethal aliens, mine riches, and unlock powerful upgrades to survive, as you wield the full arsenal of Deep Rock Galactic. It's one dwarf against all of Planet Hoxxes!
Go Mecha Ball
Load up and roll out, in this twin stick shooter with roguelike progression! Blast your way through arcade-style levels, using pinball-style physics mixed with an arsenal of devastating weapons. Defeat waves of enemy bots, battle big bosses, and upgrade your mech between runs.
The Universim
Jump straight into managing your own planets as you guide a civilization through the ages. Build the ultimate empire in The Universim, a new breed of God Game in development by Crytivo.
Angel at Dusk
Overwhelmingly bizarre beauty. Shoot, dodge, and destroy! A shmup where an apocalyptic world awakens to primal desires!
Turok 3: Shadow of Oblivion Remastered
Finish the hunt in this epic finale to the Turok Trilogy. Pick up immediately after the events of Turok 2: Seeds of Evil, with dual protagonists Joseph and Danielle Fireseed, of the Turok family tree, as they battle the titular antagonist Oblivion and its followers, the Flesh Eaters.
Valfaris: Mecha Therion
Therion returns as the hunt for Lord Vroll continues. Pilot an advanced machine of death and destruction in this explosive 2.5D side-scrolling shoot ‘em up, and sequel to the critically acclaimed Valfaris. Strap in and unleash mecha hell!
Loddlenaut
Play as an interstellar custodian sent to clean up a polluted ocean planet. Pick up trash, explore the vibrant waters, and take care of axolotl-like alien creatures!
The Invincible
Rethink human’s dominion in The Invincible: a story-driven adventure set in a hard sci-fi world by Stanisław Lem. Discover planet Regis III as scientist Yasna, use atompunk tools looking for a missing crew and face unforeseen threats. Make choices in a philosophical story that’s driven by science.
Aliens: Dark Descent
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.
Tom Clancy’s Rainbow Six® Extraction
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.
Most played aliens games on Steam
Take a look at the top aliens games that are currently attracting the largest player bases on the Steam platform, as of June 15th 2025.
1. Aliens: Fireteam Elite
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. Aliens: Fireteam Elite is a co-op, shooter and aliens game developed by Cold Iron Studios and published by Cold Iron Studios and Focus Entertainment. Released on August 23rd 2021 has received 24,731 reviews of which 19,732 were positive and 4,999 were negative resulting in a rating of 7.8 out of 10. The game has hit the top spot as the #1 most played aliens game, thanks to its 489 peak concurrent players over the last day.
7.8
19,732
4,999
489
players
2. Alien: Isolation
Discover the true meaning of fear in Alien: Isolation, a survival horror set in an atmosphere of constant dread and mortal danger. Alien: Isolation is a horror, survival horror and sci-fi game developed by Creative Assembly and Feral Interactive (Linux) and published by Feral interactive (Mac), Feral Interactive (Linux) and SEGA. Released on October 06th 2014 has received 60,831 reviews of which 56,716 were positive and 4,115 were negative resulting in an impressive rating of 9.2 out of 10. While seeing 264 players online at once in the last 24 hours, this game is currently ranked #2 among aliens games based on player count.
9.2
56,716
4,115
264
players
3. Galactic Civilizations III
Build a civilization that will stand the test of time in the largest space-based strategy game ever! Choose from dozens of unique races and make a name for yourself across the galaxy through diplomacy, espionage, technological advances, and more. Galactic Civilizations III is a aliens, sci-fi and 4x game developed and published by Stardock Entertainment. Released on May 14th 2015 has received 10,282 reviews of which 7,874 were positive and 2,408 were negative resulting in a rating of 7.5 out of 10. While seeing 173 players online at once in the last 24 hours, this game is currently ranked #3 among aliens games based on player count.
7.5
7,874
2,408
173
players
4. Gatekeeper
Gatekeeper is a fast-paced rogue-like. Go on a quest to chase down Chaos and reclaim the stolen Heart of Time, fighting your way through relentless enemy forces. Play solo or in 4-player co-op and become the next Gatekeeper! Gatekeeper is a early access, online co-op and action roguelike game developed by Gravity Lagoon and published by HypeTrain Digital. Released on May 13th 2024 has received 1,653 reviews of which 1,409 were positive and 244 were negative resulting in a rating of 8.2 out of 10. With 116 concurrent players in the last 24 hours, the game currently holds the #4 spot among the most played aliens games.
8.2
1,409
244
116
players
5. Aliens vs. Predator™
Survive, hunt and prey in the deadly jungles and swamps in distinctly new and thrilling first person gameplay. Aliens vs. Predator™ is a action, fps and aliens game developed by Rebellion and published by SEGA. Released on February 16th 2010 has received 19,953 reviews of which 18,175 were positive and 1,778 were negative resulting in a rating of 8.9 out of 10. With 104 concurrent players in the last 24 hours, the game currently holds the #5 spot among the most played aliens games.
8.9
18,175
1,778
104
players
6. EARTH DEFENSE FORCE 4.1 The Shadow of New Despair
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. EARTH DEFENSE FORCE 4.1 The Shadow of New Despair is a action, third-person shooter and co-op game developed by SANDLOT and published by D3PUBLISHER. Released on July 18th 2016 has received 10,054 reviews of which 9,554 were positive and 500 were negative resulting in an impressive rating of 9.2 out of 10. The game currently holds the #6 spot among the most played aliens games.
9.2
9,554
500
84
players
7. Crysis 3 Remastered
Experience the single-player experience from the iconic first-person shooter, Crysis 3, optimized to take advantage of today's hardware in Crysis 3 Remastered. Crysis 3 Remastered is a action, fps and shooter game developed by Crytek and Saber Interactive and published by Crytek. Released on November 17th 2022 has received 5,793 reviews of which 5,108 were positive and 685 were negative resulting in a rating of 8.5 out of 10. The game currently holds the #7 spot among the most played aliens games.
8.5
5,108
685
76
players
8. X-COM: UFO Defense
You are in control of X-COM: an organization formed by the world's governments to fight the ever-increasing alien menace. X-COM: UFO Defense is a strategy, classic and turn-based strategy game developed by MicroProse Software and Inc and published by 2K. Released on September 04th 2008 has received 3,799 reviews of which 3,602 were positive and 197 were negative resulting in an impressive rating of 9.1 out of 10. The game currently holds the #8 spot among the most played aliens games.
9.1
3,602
197
43
players
9. Destroy All Humans! 2 - Reprobed
Crypto is back with a license to probe. The alien invader returns, groovier than ever. Experience the swinging ‘60s in all its chemical-induced glory and take revenge on the KGB for blowing up your mothership. You’ll have to form alliances with members of the very species you came to enslave. Destroy All Humans! 2 - Reprobed is a third-person shooter, aliens and action-adventure game developed by Black Forest Games and published by THQ Nordic. Released on August 30th 2022 has received 2,747 reviews of which 2,135 were positive and 612 were negative resulting in a rating of 7.5 out of 10. The game currently holds the #9 spot among the most played aliens games.
7.5
2,135
612
35
players
10. Duke Nukem Forever
The King arrives with an arsenal of over-the-top weapons, giant explosions and pure unadulterated fun! Duke Nukem Forever is a fps and action game developed by Gearbox Software and published by 2K. Released on June 09th 2011 has received 10,992 reviews of which 7,586 were positive and 3,406 were negative resulting in a rating of 6.8 out of 10. The game currently holds the #10 spot among the most played aliens games.
6.8
7,586
3,406
33
players
Best deals on aliens games on Steam
Discover fantastic savings with the best discounts on a variety of aliens games available on Steam right now, updated on June 15th 2025. Looking for even more deals? Use the search filters to explore a wider range of discounted aliens games.
1. Duke Nukem Forever
The King arrives with an arsenal of over-the-top weapons, giant explosions and pure unadulterated fun! Duke Nukem Forever is a fps and action game developed by Gearbox Software and published by 2K. Released on June 09th 2011 has received 10,992 reviews of which 7,586 were positive and 3,406 were negative resulting in a rating of 6.8 out of 10. Featuring a massive 97% discount, this game currently holds the #1 spot in the best deals for aliens category.
6.8
7,586
3,406
-97%
19.99€
0.65€
2. Alien Breed 3: Descent
Experience the final explosive chapter in the Alien Breed series and uncover the horrifying truth surrounding the existence of the Breed. Launch discount good thru Nov. 24 10am PST. Alien Breed 3: Descent is a action, shooter and isometric game developed and published by Team17 Digital Ltd. Released on November 17th 2010 has received 578 reviews of which 431 were positive and 147 were negative resulting in a rating of 7.1 out of 10. Thanks to its incredible 96% discount, this game is now the #2 best deal in aliens games.
7.1
431
147
-96%
9.99€
0.47€
3. Chenso Club
Aliens are attacking! Who will save us? Chenso Club will! Using chainsaws, hammers, and the aliens’ own life force against them - these fearless warriors will pulverise enemies on their way to victory. Go solo! Go co-op! Go hack those aliens in this action-packed, side-scrolling platform brawler! Chenso Club is a aliens, co-op and action roguelike game developed by Pixadome and published by Aurora Punks. Released on September 01st 2022 has received 312 reviews of which 235 were positive and 77 were negative resulting in a rating of 7.1 out of 10. Thanks to its incredible 95% discount, this game is now the #3 best deal in aliens games.
7.1
235
77
-95%
9.99€
0.55€
4. Galactic Civilizations III
Build a civilization that will stand the test of time in the largest space-based strategy game ever! Choose from dozens of unique races and make a name for yourself across the galaxy through diplomacy, espionage, technological advances, and more. Galactic Civilizations III is a aliens, sci-fi and 4x game developed and published by Stardock Entertainment. Released on May 14th 2015 has received 10,282 reviews of which 7,874 were positive and 2,408 were negative resulting in a rating of 7.5 out of 10. Currently offered at a significant 94% discount, this title has earned the #4 position in the best deals for aliens games.
7.5
7,874
2,408
-94%
28.99€
1.98€
5. Alien: Isolation
Discover the true meaning of fear in Alien: Isolation, a survival horror set in an atmosphere of constant dread and mortal danger. Alien: Isolation is a horror, survival horror and sci-fi game developed by Creative Assembly and Feral Interactive (Linux) and published by Feral interactive (Mac), Feral Interactive (Linux) and SEGA. Released on October 06th 2014 has received 60,831 reviews of which 56,716 were positive and 4,115 were negative resulting in an impressive rating of 9.2 out of 10. Currently offered at a significant 93% discount, this title has earned the #5 position in the best deals for aliens games.
9.2
56,716
4,115
-93%
39.99€
3.01€
6. X-COM: Apocalypse
There's something evil in the city tonight... Earth has been ravaged by human excess, petty conflict and alien invasion. The world's population has been herded into huge cities, the first of which was Mega Primus. 2084: A Utopia shattered, social collapse and civil unrest reigns in Mega Primus. Fiendish aliens terrorize the city. X-COM: Apocalypse is a strategy, turn-based and tactical game developed by MicroProse Software and Inc and published by 2K. Released on September 04th 2008 has received 897 reviews of which 792 were positive and 105 were negative resulting in a rating of 8.3 out of 10. Currently offered at a significant 93% discount, this title has earned the #6 position in the best deals for aliens games.
8.3
792
105
-93%
4.99€
0.35€
7. Alien Shooter 2: Reloaded
This is the unique alloy of arcade action and RPG elements which combines well-established world of classical games and unmatched dynamics of the first part. Alien Shooter 2: Reloaded is a aliens, looter shooter and shoot 'em up game developed and published by Sigma Team Inc.. Released on May 27th 2009 has received 3,283 reviews of which 3,012 were positive and 271 were negative resulting in a rating of 8.8 out of 10. Currently offered at a significant 92% discount, this title has earned the #7 position in the best deals for aliens games.
8.8
3,012
271
-92%
4.99€
0.40€
8. X-COM: UFO Defense
You are in control of X-COM: an organization formed by the world's governments to fight the ever-increasing alien menace. X-COM: UFO Defense is a strategy, classic and turn-based strategy game developed by MicroProse Software and Inc and published by 2K. Released on September 04th 2008 has received 3,799 reviews of which 3,602 were positive and 197 were negative resulting in an impressive rating of 9.1 out of 10. Currently offered at a significant 91% discount, this title has earned the #8 position in the best deals for aliens games.
9.1
3,602
197
-91%
4.99€
0.48€
9. Alien Breed: Impact
Experience the explosive science fiction arcade-shooter that resurrects a much revered franchise in an epic single player and co-op multiplayer campaign. Alien Breed: Impact is a action, shooter and top-down game developed by Team17 Software Ltd. and published by Team17 Digital Ltd. Released on June 03rd 2010 has received 1,789 reviews of which 1,334 were positive and 455 were negative resulting in a rating of 7.2 out of 10. Currently offered at a significant 90% discount, this title has earned the #9 position in the best deals for aliens games.
7.2
1,334
455
-90%
8.99€
0.91€
10. Alien Breed 2: Assault
Can you survive the alien onslaught? Gamers across the world will now have a chance to play the next chapter in this high-budget, high-quality series. Alien Breed 2: Assault is a action, shooter and aliens game developed and published by Team17 Digital Ltd. Released on September 22nd 2010 has received 1,006 reviews of which 701 were positive and 305 were negative resulting in a rating of 6.7 out of 10. Currently offered at a significant 90% discount, this title has earned the #10 position in the best deals for aliens games.
6.7
701
305
-90%
9.99€
0.99€
Free aliens games on Steam
Check out this fantastic list of free-to-play aliens games you can enjoy on Steam right now, updated on June 15th 2025. Looking for even more free titles? Use the search filters to explore a wider range of free to play aliens games.
1. 100 Aliens Cats
👽🛸 100 Aliens Cats - 🐾 Join the cutest adventure in the Aliens themed locations full of cats! Explore the charming hand-drawn artwork of aliens places and Cats as you embark on a quest to find 100 adorable cats hidden throughout the game. 🕵️♂️❌ Can you find them all? 🕵️♂️🐈✅ 100 Aliens Cats is a free to play, cats and aliens game developed by 100 Cozy Games and Cats and published by 100 Cozy Games. Released on June 09th 2024 has received 1,673 reviews of which 1,595 were positive and 78 were negative resulting in an impressive rating of 9.1 out of 10. The game currently holds the #1 spot among the most played free aliens games on Steam.
9.1
1,595
78
5
players
2. Void Whispers
Assume the role of a broadcast engineer in a tranquil city. All seems peaceful until the sky above starts to reveal something deeply unsettling. Void Whispers is a free to play, horror and psychological horror game developed and published by Eduardo Scarpato. Released on April 06th 2024 has received 378 reviews of which 352 were positive and 26 were negative resulting in a rating of 8.6 out of 10. The game currently holds the #2 spot among the most played free aliens games on Steam.
8.6
352
26
3. Alien Removal Division
The invasion has started and the secret military research facility has fallen leaving only chaos. As the only survivor, you must fight your way through the military base against a horde of frantic aliens. A.R.D. is a FREE single-player first-person shooter made by students from Breda University. Alien Removal Division is a parkour, fps and action game developed by Enchanted Bean Studios and published by Breda University of Applied Sciences. Released on June 17th 2022 has received 1,060 reviews of which 936 were positive and 124 were negative resulting in a rating of 8.4 out of 10. The game currently holds the #3 spot among the most played free aliens games on Steam.
8.4
936
124