Aliens
2848 games in this zone
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Dead Space - The sci-fi survival-horror classic returns, completely rebuilt to offer an even more immersive experience — including visual, audio, and gameplay improvements — while staying faithful to the original game’s thrilling vision.
Jan 27, 2023
Scars Above - Scars Above is a challenging sci-fi third-person action adventure shooter combining the rewarding feel of overcoming difficulty with a compelling and intricate story, set in a mysterious alien world to explore.
Feb 28, 2023
变量 Variables - We created this unique single player game with a combination of Tower Defence and Roguelike. Come and create your maze, build your turret, defeat the invaders, and save the world!
Jul 30, 2019
Warhammer 40,000: Inquisitor - Prophecy - Foul Tyranids rampaging on barren worlds; the mysterious Aeldari waging war on the Imperium; a prophecy that could change the fate of an entire Sector. Purge the unclean with the new Tech-Adept Inquisitor and carry out the Emperor’s will in the grim Action-RPG “WH40k: Inquisitor - Prophecy”.
Jul 30, 2019
Space Hulk: Deathwing Enhanced Edition - 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.
May 22, 2018
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.
Nov 6, 2023
Duke Nukem 3D: 20th Anniversary World Tour - Frag like it’s 1996 – this time with even more asses to kick! Join the world’s greatest action hero in Duke Nukem 3D: 20th Anniversary World Tour as he saves Earth once again, kicking alien ass and saving babes across the globe along the way.
Oct 11, 2016
The Red Solstice - 2280 A.D. The last few survivors of a ruined Earth seek a new home: Mars, a planet whose inhabitants didn't take too kindly to outsiders. The Red Solstice is a tense, tactical, squad-based action game. Fight to survive with up to 8 players in co-op, or lead your own squad in single-player mode.
Jul 9, 2015
Anomaly: Warzone Earth - Lead an armored squad through the perils of this reversed tower defense action-strategy game!
Apr 8, 2011
Serious Sam 3: BFE - Serious Sam 3: BFE is a prequel to the original indie fast action FPS and Game of the Year sensation - Serious Sam: The First Encounter!
Nov 22, 2011
Serious Sam HD: The Second Encounter - Serious Sam HD: The Second Encounter is a visually upgraded and fully Steam supported remake of the original high-adrenaline single-play and 16-player co-operative arcade-action FPS and Gamespot's Game of the Month!
Apr 28, 2010
Serious Sam HD: The First Encounter - Serious Sam HD: The First Encounter is a visually upgraded and fully Steam supported remake version of the original high-adrenaline single-play and 16-player co-operative arcade-action FPS which was Gamespot's Game of the Year 2001 and which scored overall of 87% on Metacritic!
Nov 24, 2009
Top Rated
Angel at Dusk - Overwhelmingly bizarre beauty. Shoot, dodge, and destroy! A shmup where an apocalyptic world awakens to primal desires!
Jan 12, 2024
Half-Life 2: Episode Two - Half-Life® 2: Episode Two is the second in a trilogy of new games created by Valve that extends the award-winning and best-selling Half-Life® adventure. As Dr. Gordon Freeman, you were last seen exiting City 17 with Alyx Vance as the Citadel erupted amidst a storm of unknown proportions.
Oct 10, 2007
Half-Life 2: Episode One - Half-Life 2 has sold over 4 million copies worldwide, and earned over 35 Game of the Year Awards. Episode One is the first in a series of games that reveal the aftermath of Half-Life 2 and launch a journey beyond City 17. Also features two multiplayer games. Half-Life 2 not required.
Jun 1, 2006
Defense Grid: The Awakening - Defense Grid: The Awakening is a unique spin on tower defense gameplay that will appeal to players of all skill levels. A horde of enemies is invading, and it's up to the player to stop them by strategically building fortification towers around their base.
Dec 8, 2008
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? 🕵️♂️🐈✅
Jun 9, 2024
Alien Swarm: Reactive Drop - 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.
Apr 20, 2017
Alien Swarm - Co-operative multiplayer game and complete code base available for free.
Jul 19, 2010
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.
Jul 18, 2016
Species: Unknown - 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.
Oct 23, 2025
Alien Shooter - The endless darkness and the somber, long passages of a military complex have become the abode of evil, thousands of blood-thirsty creatures fill its offices, storehouses and mysterious laboratories. About 1,000 monsters on each map, showing up to 100 monsters simultaneously on one playing screen.
May 27, 2009
Vertigo 2 - Vertigo 2 is a single-player VR adventure. Explore the depths of the vast Quantum Reactor as you descend to finish your journey home.
Mar 30, 2023
New & Notable
The Message from Deep Space - Mission: Translate an interstellar message, using the universal languages of math & science.
Jun 29, 2026
YOU ARE THE MONSTER - Ever wanted to be a giant monster rampaging through a city? Experience mindless chaos as you destroy all in your path, earning new abilities, new monsters and new ways to wreak havoc.
Jun 18, 2026
Starminer - Design and build a massive interstellar fleet in this simulation sandbox. Strip space of its minerals for profit, but stay alert: your greed attracts the alien. Master deep base-building and deploy warships to protect your empire in immersive real-time space.
May 27, 2026
Alien Strike: Blasting the Intruders - Slide, jump and shoot in 8 directions in this explosive Run 'n Gun for up to 3 players! Swap weapons in real time, activate insane specials and take on alien bosses in an action-packed invasion of retro mayhem!
May 7, 2026
LIFE EFFECT Survival - Survive in a harsh and dangerous world after an alien invasion. Gather resources, craft equipment, fight mutants and massive monsters, use weapons, vehicles and robots, explore territories, defend strongholds and fight for survival.
Mar 26, 2026
Shinehill - Yet again they dumped the toughest job on you. Now you are on Shinehill Island, where you suddenly replaced one of the new residents. Explore the world, meet charming townspeople, do farming, fishing, cooking and try not to reveal yourself.
Mar 6, 2026
Dead in Antares - Dead in Antares is a turn-based survival management game with RPG elements, set on an alien planet. Lead a crew of survivors sent on a mission to save humanity. Manage their needs, strengthen their teamwork, and explore this mysterious world to find a way back home.
Feb 19, 2026
High On Life 2 - An intergalactic conspiracy threatens the fate of humanity! Team up with a wide cast of talking alien guns as you shoot, stab, and skate your way through the exotic locales to take down the bad guys and save your favorite species (humans)!
Feb 13, 2026
