| Name | | Reviews | Release Date | Tags |
 | Among Us | 382,936 | Nov. 16, 2018 | 2D Action Aliens Cartoony Casual Colorful Co-op Funny Local Multiplayer Minigames Multiplayer Online Co-Op Party Game Psychological PvP Sci-fi Social Deduction Space Survival Top-Down |
 | Lethal Company | 276,772 | Oct. 23, 2023 | Action Action-Adventure Adventure Aliens Atmospheric Co-op Dungeon Crawler Early Access Exploration First-Person Funny Horror Online Co-Op Perma Death Procedural Generation Psychological Horror PvE Sci-fi Survival Horror Time Management |
 | Subnautica | 189,937 | Jan. 23, 2018 | Action Adventure Aliens Atmospheric Base Building Crafting Exploration First-Person Horror Indie Multiplayer Open World Open World Survival Craft Sandbox Sci-fi Singleplayer Survival Survival Horror Underwater VR |
 | Halo: The Master Chief Collection | 165,239 | Dec. 3, 2019 | Action Adventure Aliens Atmospheric Beautiful Classic Co-op Epic First-Person FPS Great Soundtrack Horror Lore-Rich Multiplayer Online Co-Op Sci-fi Shooter Singleplayer Space Story Rich |
 | Halo Infinite | 139,353 | Nov. 15, 2021 | Action Adventure Aliens Atmospheric Cinematic Competitive Co-op First-Person FPS Free to Play Lore-Rich Multiplayer Open World PvP Sci-fi Shooter Singleplayer Soundtrack Space Story Rich |
 | Half-Life 2 | 91,733 | Nov. 16, 2004 | Action Adventure Aliens Atmospheric Classic Dystopian First-Person FPS Great Soundtrack Horror Moddable Multiplayer Physics Puzzle Sci-fi Shooter Silent Protagonist Singleplayer Story Rich Zombies |
 | Black Mesa | 70,659 | March 6, 2020 | Action Adventure Aliens Atmospheric Classic Early Access First-Person FPS Gore Great Soundtrack Horror Indie Mod Multiplayer Remake Sci-fi Shooter Singleplayer Story Rich Zombies |
 | Half-Life: Alyx | 61,861 | March 23, 2020 | Action Adventure Aliens Atmospheric Beautiful Female Protagonist First-Person FPS Futuristic Gore Great Soundtrack Horror Memes Psychological Horror Sci-fi Shooter Singleplayer Story Rich VR Zombies |
 | Half-Life | 59,520 | Nov. 19, 1998 | 1990's Action Action-Adventure Adventure Aliens Atmospheric Classic Difficult First-Person FPS Gore Moddable Multiplayer PvP Retro Sci-fi Shooter Silent Protagonist Singleplayer Story Rich |
 | Subnautica: Below Zero | 55,748 | May 13, 2021 | Action Adventure Aliens Atmospheric Base Building Crafting Exploration First-Person Horror Indie Multiplayer Open World Open World Survival Craft Sandbox Sci-fi Singleplayer Story Rich Survival Survival Horror Underwater |
 | STAR WARS™ Battlefront™ II | 52,844 | June 11, 2020 | Action Adventure Aliens Character Customization Combat Controller Co-op First-Person FPS Multiplayer Online Co-Op PvP Sci-fi Shooter Singleplayer Space Tactical Third Person Third-Person Shooter Vehicular Combat |
 | SPORE™ | 38,635 | Dec. 19, 2008 | Adventure Aliens Cartoon Cartoony Casual Colony Sim Colorful Comedy Cute Exploration Family Friendly Funny God Game Open World Resource Management Sandbox Science Sci-fi Simulation Space |
 | The Planet Crafter | 38,097 | April 10, 2024 | Adventure Aliens Automation Base Building Building Co-op Crafting Exploration First-Person Immersive Sim Online Co-Op Open World Open World Survival Craft Resource Management Sandbox Sci-fi Singleplayer Space Story Rich Survival |
 | Dead Space | 32,749 | Jan. 27, 2023 | Action Action-Adventure Adventure Aliens Atmospheric Combat Dark Gore Horror Psychological Horror Remake Sci-fi Shooter Singleplayer Space Survival Survival Horror Third Person Third-Person Shooter Violent |
 | Abiotic Factor | 29,239 | July 22, 2025 | Adventure Aliens Base Building Building Co-op Campaign Crafting Early Access Exploration First-Person FPS Immersive Sim Multiplayer Online Co-Op Open World Survival Craft PvE Sandbox Science Sci-fi Simulation Survival |
 | Abiotic Factor Playtest | 29,158 | Dec. 12, 2023 | Adventure Aliens Base Building Building Co-op Campaign Crafting Early Access Exploration First-Person FPS Immersive Sim Multiplayer Online Co-Op Open World Survival Craft PvE Sandbox Science Sci-fi Simulation Survival |
 | Alien: Isolation | 27,099 | Oct. 6, 2014 | Action Adventure Aliens Atmospheric Difficult Female Protagonist First-Person FPS Gore Great Soundtrack Horror Psychological Horror Sci-fi Shooter Singleplayer Space Stealth Survival Survival Horror VR |
 | XCOM: Enemy Unknown | 25,146 | Oct. 8, 2012 | Action Addictive Aliens Atmospheric Base Building Character Customization Difficult Futuristic Multiplayer Perma Death Reboot Replay Value RPG Sci-fi Singleplayer Strategy Tactical Turn-Based Turn-Based Strategy Turn-Based Tactics |
 | Deep Rock Galactic: Survivor | 24,131 | Sept. 17, 2025 | Action Action Roguelike Aliens Arcade Arena Shooter Atmospheric Bullet Heaven Bullet Hell Combat Dwarves Procedural Generation PvE Roguelike Roguelite Sci-fi Score Attack Singleplayer Space Top-Down Top-Down Shooter |
 | Deep Rock Galactic: Survivor Playtest | 24,127 | June 2, 2023 | Action Action Roguelike Aliens Arcade Arena Shooter Atmospheric Bullet Heaven Bullet Hell Combat Dwarves Procedural Generation PvE Roguelike Roguelite Sci-fi Score Attack Singleplayer Space Top-Down Top-Down Shooter |
 | Saints Row IV: Re-Elected | 23,480 | Aug. 19, 2013 | Action Adventure Aliens Character Customization Comedy Co-op Dark Humor Female Protagonist Funny Great Soundtrack Multiplayer Online Co-Op Open World Parody Sandbox Sci-fi Singleplayer Superhero Third Person Third-Person Shooter |
 | Prey | 22,435 | May 4, 2017 | Action Adventure Aliens Atmospheric Exploration First-Person FPS Futuristic Great Soundtrack Horror Immersive Sim Open World Psychological Horror RPG Sci-fi Singleplayer Space Stealth Story Rich Survival Horror |
 | Starship Troopers: Extermination Playtest | 20,893 | March 26, 2024 | 3D Action Aliens Arcade Arena Shooter Base Building Class-Based Combat Co-op First-Person FPS Multiplayer Online Co-Op PvE Realistic Sci-fi Shooter Singleplayer Space Wargame |
 | Starship Troopers: Extermination | 20,892 | Oct. 10, 2024 | 3D Action Aliens Arcade Arena Shooter Base Building Class-Based Combat Co-op First-Person FPS Multiplayer Online Co-Op PvE Realistic Sci-fi Shooter Singleplayer Space Wargame |
 | Marvel's Guardians of the Galaxy | 19,024 | Oct. 26, 2021 | Action Action-Adventure Adventure Aliens Atmospheric Choices Matter Cinematic Comedy Exploration Great Soundtrack Multiplayer Open World RPG Sci-fi Shooter Singleplayer Space Story Rich Superhero Third-Person Shooter |
 | Half-Life 2: Episode Two | 16,121 | Oct. 10, 2007 | Action Adventure Aliens Atmospheric Classic Dystopian Episodic First-Person FPS Great Soundtrack Horror Multiplayer Post-apocalyptic Puzzle Sci-fi Shooter Silent Protagonist Singleplayer Story Rich Zombies |
 | Aliens: Fireteam Elite | 14,383 | Aug. 23, 2021 | Action Aliens Atmospheric Character Customization Controller Co-op Co-op Campaign Horror Multiplayer Online Co-Op PvE RPG Sci-fi Shooter Singleplayer Space Survival Survival Horror Third Person Third-Person Shooter |
 | Half-Life: Opposing Force | 13,617 | Nov. 1, 1999 | 1990's Action Adventure Aliens Atmospheric Classic Co-op First-Person FPS Gore Great Soundtrack Military Moddable Puzzle Retro Sci-fi Shooter Silent Protagonist Singleplayer Story Rich |
 | XCOM®: Chimera Squad | 12,991 | April 23, 2020 | Action Aliens Character Customization Female Protagonist Futuristic Isometric LGBTQ+ Multiplayer RPG Sci-fi Singleplayer Strategy Tactical Tactical RPG Turn-Based Turn-Based Combat Turn-Based Strategy Turn-Based Tactics |
 | Dead Space™ 2 | 12,198 | Jan. 25, 2011 | Action Adventure Aliens Atmospheric Combat Co-op Futuristic Gore Horror Multiplayer Sci-fi Shooter Singleplayer Space Story Rich Survival Survival Horror Third Person Third-Person Shooter Zombies |
 | Dead Space (2008) | 12,137 | Jan. 9, 2009 | Action Adventure Aliens Atmospheric Dark Futuristic Gore Horror Immersive Sci-fi Shooter Silent Protagonist Singleplayer Space Story Rich Survival Survival Horror Third Person Third-Person Shooter Zombies |
 | Half-Life 2: Episode One | 11,743 | June 1, 2006 | Action Adventure Aliens Atmospheric Cinematic Classic Dystopian Episodic First-Person FPS Great Soundtrack Moddable Puzzle Sci-fi Shooter Short Silent Protagonist Singleplayer Story Rich Zombies |
 | Alien Swarm | 10,342 | July 19, 2010 | Action Adventure Aliens Class-Based Co-op Free to Play Moddable Multiplayer Online Co-Op PvE Sci-fi Shooter Singleplayer Strategy Survival Team-Based Third Person Third-Person Shooter Top-Down Top-Down Shooter |
 | Halo: Campaign Evolved | 10,261 | July 28, 2026 | Action Adventure Aliens Artificial Intelligence Atmospheric Cinematic Co-op First-Person FPS Great Soundtrack Lore-Rich Multiplayer Political Sim Remake Sci-fi Shooter Singleplayer Space Story Rich Violent |
 | Half-Life: Blue Shift | 10,194 | June 1, 2001 | 1990's Action Adventure Aliens Atmospheric Classic First-Person FPS Great Soundtrack Moddable Puzzle Retro Sci-fi Shooter Short Silent Protagonist Singleplayer Story Rich Violent Zombies |
 | Sid Meier's Civilization®: Beyond Earth™ | 10,071 | Oct. 23, 2014 | 4X Action Adventure Aliens Atmospheric Exploration Futuristic Grand Strategy Hex Grid Moddable Multiplayer Replay Value Sci-fi Simulation Singleplayer Space Strategy Tactical Turn-Based Turn-Based Strategy |
 | Aliens: Dark Descent | 9,495 | June 19, 2023 | 3D Action Action-Adventure Aliens Combat Dark Horror Isometric Real Time Tactics RTS Sci-fi Singleplayer Space Stealth Strategy Survival Tactical Top-Down Top-Down Shooter Violent |
 | Nuclear Nightmare | 9,284 | Oct. 20, 2024 | Action Action-Adventure Adventure Aliens Atmospheric Co-op Early Access Exploration First-Person Funny Horror Multiplayer Online Co-Op Open World Perma Death Procedural Generation Psychological Horror PvE Sci-fi Survival Horror |
 | Surgeon Simulator | 8,496 | April 19, 2013 | Action Aliens Casual Comedy Dark Dark Humor Difficult First-Person Funny Gore Great Soundtrack Indie Intentionally Awkward Controls Medical Sim Multiplayer Physics Puzzle Simulation Singleplayer VR |
 | Aliens vs. Predator™ | 8,204 | Feb. 16, 2010 | Action Adventure Aliens Atmospheric Co-op First-Person FPS Gore Horror Hunting Multiplayer Online Co-Op Sci-fi Shooter Singleplayer Stealth Strategy Survival Survival Horror Villain Protagonist |
 | Half-Life: Source | 7,917 | June 1, 2004 | 1990's Action Adventure Aliens Atmospheric Classic First-Person FPS Gore Great Soundtrack Horror Moddable Multiplayer Remake Sci-fi Shooter Silent Protagonist Singleplayer Story Rich Zombies |
 | Alien Swarm: Reactive Drop | 6,781 | April 20, 2017 | Aliens Class-Based Combat Co-op First-Person Free to Play Hacking Level Editor LGBTQ+ Moddable PvE PvP Sci-fi Shooter Tactical Third Person Third-Person Shooter Top-Down Top-Down Shooter Twin Stick Shooter |
 | Destroy All Humans! | 6,607 | July 28, 2020 | Action Adventure Aliens Classic Comedy Co-op Dark Humor Destruction Funny Gore Multiplayer Open World Remake Sandbox Sci-fi Singleplayer Third Person Third-Person Shooter Villain Protagonist Violent |
 | Galactic Civilizations III | 6,597 | May 14, 2015 | 3D 4X Aliens Futuristic Grand Strategy Hex Grid Lore-Rich Moddable Multiplayer Procedural Generation PvE PvP Sandbox Sci-fi Space Strategy Third Person Turn-Based Turn-Based Strategy War |
 | Species: Unknown | 6,494 | Oct. 23, 2025 | 3D Action Aliens Atmospheric Early Access Exploration First-Person FPS Horror Indie Investigation Multiplayer Online Co-Op Psychological Horror PvE Sci-fi Shooter Space Stealth Survival Horror |
 | Species: Unknown Playtest | 6,477 | June 17, 2025 | 3D Action Aliens Atmospheric Early Access Exploration First-Person FPS Horror Indie Investigation Multiplayer Online Co-Op Psychological Horror PvE Sci-fi Shooter Space Stealth Survival Horror |
 | Star Conflict | 6,260 | Feb. 27, 2013 | 3D Action Aliens Atmospheric Choose Your Own Adventure Crafting Flight Free to Play Massively Multiplayer Online Co-Op Open World PvE RPG Sandbox Science Sci-fi Shooter Space Sim Third Person Trading |
 | STAR WARS™: Battlefront Classic Collection | 6,256 | March 13, 2024 | 3D Action Aliens Artificial Intelligence Driving First-Person FPS Futuristic Military Old School Retro Robots Sci-fi Shooter Space Split Screen Tactical Third Person Third-Person Shooter War |
 | Halo Wars: Definitive Edition | 6,118 | April 20, 2017 | Action Aliens Atmospheric Base Building Classic Co-op Great Soundtrack Military Multiplayer Online Co-Op RTS Sandbox Sci-fi Shooter Simulation Singleplayer Story Rich Strategy Tactical War |
 | Space Hulk: Deathwing Enhanced Edition | 5,997 | May 22, 2018 | Action Adventure Aliens Atmospheric Character Customization Co-op Difficult First-Person FPS Gore Hack and Slash Horror Multiplayer Online Co-Op RPG Sci-fi Shooter Singleplayer Space Violent |
 | EARTH DEFENSE FORCE 4.1 The Shadow of New Despair | 5,950 | July 18, 2016 | Action Aliens Anime Comedy Co-op Destruction Difficult Funny Gore Local Co-Op Mechs Memes Multiplayer Online Co-Op Robots Sci-fi Shooter Singleplayer Split Screen Third-Person Shooter |
 | Serious Sam 3: BFE | 5,930 | Nov. 22, 2011 | Action Adventure Aliens Comedy Co-op Difficult First-Person FPS Funny Gore Indie Local Co-Op Local Multiplayer Multiplayer Old School Online Co-Op Sci-fi Shooter Singleplayer Split Screen |
 | Starship Troopers: Terran Command | 5,782 | June 16, 2022 | Action Aliens Artificial Intelligence Gore Great Soundtrack Isometric Military Real-Time Real Time Tactics Replay Value Resource Management RTS Sci-fi Simulation Singleplayer Strategy Tactical Tower Defense War Wargame |
 | EARTH DEFENSE FORCE 5 | 5,636 | July 11, 2019 | Action Aliens Anime Class-Based Co-op Difficult Funny Gore Hack and Slash Local Co-Op Mechs Multiplayer Online Co-Op Sci-fi Shooter Singleplayer Split Screen Third Person Third-Person Shooter Violent |
 | Breathedge | 5,516 | Feb. 25, 2021 | Action Action-Adventure Adventure Aliens Atmospheric Base Building Co-op Crafting Exploration First-Person Indie Multiplayer Open World Open World Survival Craft Sandbox Sci-fi Simulation Singleplayer Space Survival |
 | Natural Selection 2 | 5,429 | Oct. 30, 2012 | Action Adventure Aliens Atmospheric Competitive Co-op First-Person FPS Futuristic Indie Moddable Multiplayer Online Co-Op RTS Sci-fi Shooter Space Strategy Tactical Team-Based |
| Natural Selection 2 - Deluxe DLC | 5,429 | Oct. 30, 2012 | Action Adventure Aliens Atmospheric Competitive Co-op First-Person FPS Futuristic Indie Moddable Multiplayer Online Co-Op RTS Sci-fi Shooter Space Strategy Tactical Team-Based |
 | Half-Life 2: Lost Coast | 5,360 | Oct. 27, 2005 | Action Adventure Aliens Atmospheric Benchmark Classic Dystopian First-Person FPS Free to Play Futuristic Great Soundtrack Multiplayer Post-apocalyptic Sci-fi Shooter Short Silent Protagonist Singleplayer Story Rich |
 | ROUTINE | 5,237 | Dec. 4, 2025 | 3D Action Adventure Aliens Atmospheric Cinematic Dark Exploration First-Person Horror Psychological Horror Puzzle Sci-fi Singleplayer Space Stealth Story Rich Survival Horror Thriller Walking Simulator |
 | The Universim | 5,154 | Jan. 22, 2024 | Aliens Building City Builder Colony Sim Colorful Exploration God Game Management Open World Procedural Generation Real-Time with Pause Resource Management Sandbox Science Sci-fi Simulation Singleplayer Space Strategy Survival |
 | Evolve Stage 2 | 5,101 | Feb. 10, 2015 | Action Aliens Atmospheric Casual Class-Based Co-op First-Person FPS Multiplayer Online Co-Op PvP Sci-fi Shooter Singleplayer Stealth Strategy Survival Tactical Team-Based Third Person |
 | Insaniquarium Deluxe | 4,916 | Aug. 30, 2006 | Action Addictive Aliens Casual Classic Colorful Cute Difficult Family Friendly Funny Great Soundtrack Incremental Management Point & Click Psychological Horror Relaxing Simulation Singleplayer Strategy Underwater |
 | The Invincible | 4,878 | Nov. 6, 2023 | Adventure Aliens Choices Matter Dialogue Heavy Exploration Female Protagonist First-Person Futuristic Interactive Fiction Multiple Endings Mystery Nonlinear Robots Science Sci-fi Singleplayer Space Story Rich Thriller Walking Simulator |
 | 1000xRESIST | 4,796 | May 9, 2024 | 3D Aliens Anime Atmospheric Cinematic Experimental Exploration Female Protagonist Futuristic Multiple Endings Mystery Narrative Post-apocalyptic Psychological Horror Sci-fi Story Rich Surreal Thriller Visual Novel Walking Simulator |
 | Command & Conquer 3 Tiberium Wars™ | 4,474 | Nov. 13, 2009 | Action Action RTS Aliens Atmospheric Base Building City Builder Classic Family Friendly FMV Futuristic Great Soundtrack Level Editor Multiplayer Post-apocalyptic RTS Sci-fi Singleplayer Story Rich Strategy War |
 | Sanctum 2 | 4,350 | May 15, 2013 | Action Aliens Combat Co-op Female Protagonist First-Person FPS Funny Futuristic Great Soundtrack Indie Multiplayer Online Co-Op RPG Sci-fi Shooter Singleplayer Strategy Survival Tower Defense |
 | Aliens: Colonial Marines Collection | 4,348 | May 1, 2012 | Action Adventure Aliens Atmospheric Character Customization Co-op Female Protagonist First-Person FPS Futuristic Gore Great Soundtrack Horror Multiplayer Online Co-Op Sci-fi Shooter Singleplayer Space Survival |
 | ENDLESS Space™ - Definitive Edition | 4,301 | July 4, 2012 | 4X Aliens Atmospheric Diplomacy Exploration Futuristic Grand Strategy Great Soundtrack Indie Management Multiplayer Replay Value Sandbox Sci-fi Simulation Singleplayer Space Strategy Turn-Based Turn-Based Strategy |
 | Hidden Deep Playtest | 4,183 | Nov. 11, 2021 | 2D 2D Platformer Action Action-Adventure Aliens Co-op Dark Early Access Exploration Horror Mining Multiplayer Mystery Nostalgia Physics Puzzle Sci-fi Shooter Singleplayer Thriller |
 | Axiom Verge | 4,141 | May 14, 2015 | 2D Action Adventure Aliens Atmospheric Cyberpunk Difficult Exploration Great Soundtrack Horror Indie Metroidvania Pixel Graphics Platformer Retro Sci-fi Shooter Side Scroller Singleplayer Story Rich |
 | EARTH DEFENSE FORCE 6 | 4,031 | July 25, 2024 | 3D Action Aliens Anime Arcade Co-op Gore Local Co-Op Local Multiplayer Mechs Military Multiplayer Online Co-Op PvE Robots Sci-fi Shooter Singleplayer Third-Person Shooter Violent |
 | Space Hulk: Deathwing | 3,987 | Dec. 14, 2016 | Action Adventure Aliens Atmospheric Co-op First-Person FPS Gore Horror Multiplayer Online Co-Op Open World RPG Sci-fi Shooter Singleplayer Space Strategy Survival Tactical |
 | Duke Nukem Forever | 3,853 | June 13, 2011 | Action Adventure Aliens Atmospheric Classic Comedy Dark Humor First-Person FPS Funny Gore Linear Memes Multiplayer Nudity Old School Sci-fi Sexual Content Shooter Singleplayer |
 | Wall World | 3,824 | April 5, 2023 | 2D Action Action-Adventure Aliens Combat Difficult Exploration Management Mechs Mining Pixel Graphics Procedural Generation Resource Management Roguelike Roguelite Sci-fi Side Scroller Singleplayer Strategy Tower Defense |
 | Wall World Playtest | 3,818 | Dec. 14, 2022 | 2D Action Action-Adventure Aliens Combat Difficult Exploration Management Mechs Mining Pixel Graphics Procedural Generation Resource Management Roguelike Roguelite Sci-fi Side Scroller Singleplayer Strategy Tower Defense |
 | Crysis Remastered | 3,748 | Sept. 17, 2021 | Action Adventure Aliens Atmospheric Cinematic First-Person FPS Futuristic Multiplayer Open World Realistic Sandbox Sci-fi Shooter Singleplayer Stealth Story Rich Survival Tactical Violent |
 | Starcom: Unknown Space | 3,695 | Sept. 2, 2024 | 2D Action Action-Adventure Action RPG Adventure Aliens Atmospheric Building Combat Exploration Indie Lore-Rich Open World RPG Sci-fi Singleplayer Space Space Sim Story Rich Top-Down Shooter |
 | Starcom: Unknown Space Playtest | 3,695 | May 7, 2022 | 2D Action Action-Adventure Action RPG Adventure Aliens Atmospheric Building Combat Exploration Indie Lore-Rich Open World RPG Sci-fi Singleplayer Space Space Sim Story Rich Top-Down Shooter |
 | Silica | 3,613 | May 3, 2023 | 3D Action Aliens Co-op Early Access First-Person FPS Futuristic Indie Multiplayer Online Co-Op Physics PvE PvP RTS Sci-fi Shooter Singleplayer Strategy Vehicular Combat |
 | Eastshade | 3,584 | Feb. 13, 2019 | 3D Adventure Aliens Atmospheric Beautiful Colorful Crafting Exploration Fantasy First-Person Great Soundtrack Metroidvania Mystery Nature Open World Realistic Relaxing RPG Singleplayer Story Rich |
 | Defense Grid: The Awakening | 3,431 | Dec. 8, 2008 | Action Addictive Adventure Aliens Controller Futuristic Indie Replay Value RTS Sci-fi Singleplayer Strategy Touch-Friendly Tower Defense |
 | Duke Nukem 3D: 20th Anniversary World Tour | 3,353 | Oct. 11, 2016 | 1990's Action Adventure Aliens Boomer Shooter Classic Comedy Co-op First-Person FPS Funny Gore Great Soundtrack Memes Multiplayer Nudity Remake Retro Shooter Singleplayer |
 | Crysis 2 - Maximum Edition | 3,307 | March 22, 2011 | Action Adventure Aliens Atmospheric Benchmark Co-op Cyberpunk First-Person FPS Futuristic Great Soundtrack Multiplayer Open World RPG Sci-fi Shooter Singleplayer Stealth Story Rich Survival |
| Crysis 2 | 3,307 | March 22, 2011 | Action Adventure Aliens Atmospheric Benchmark Co-op Cyberpunk First-Person FPS Futuristic Great Soundtrack Multiplayer Open World RPG Sci-fi Shooter Singleplayer Stealth Story Rich Survival |
 | Star Trek: Voyager - Across the Unknown | 3,179 | Feb. 18, 2026 | 3D Aliens Choices Matter Choose Your Own Adventure Combat Dialogue Heavy Exploration Futuristic Indie Interactive Fiction Lore-Rich Management Nostalgia Roguelike Sci-fi Space Space Sim Strategy Survival Tactical |
 | Phoenix Point | 3,112 | Dec. 3, 2020 | 3D Aliens Character Customization First-Person Grand Strategy Horror Isometric Perma Death Post-apocalyptic Procedural Generation PvE RPG Strategy Tactical Tactical RPG Third Person Third-Person Shooter Transhumanism Turn-Based Strategy Tutorial |
 | Bit Blaster XL | 3,031 | Jan. 22, 2016 | 2D Action Aliens Arcade Bullet Hell Cartoon Casual Controller Difficult Family Friendly Minimalist Old School Pixel Graphics Retro Sci-fi Score Attack Shoot 'Em Up Shooter Space Survival |
 | Unnamed Space Idle | 3,012 | July 27, 2023 | 2D Aliens Artificial Intelligence Auto Battler Automation Casual Early Access Free to Play Futuristic Idler Incremental Resource Management Sci-fi Simulation Singleplayer Space Spaceships Tutorial |
 | Loddlenaut | 2,996 | Nov. 16, 2023 | 3D Adventure Aliens Atmospheric Casual Cleaning Colorful Cozy Crafting Creature Collector Cute Exploration Job Simulator Open World Pixel Graphics Relaxing Sandbox Sci-fi Singleplayer Underwater |
 | The Bureau: XCOM Declassified | 2,920 | Aug. 19, 2013 | Action Adventure Aliens Atmospheric Cold War Multiplayer Noir Open World Retro RPG Sci-fi Shooter Singleplayer Stealth Story Rich Strategy Tactical Third Person Third-Person Shooter Turn-Based |
 | Predator: Hunting Grounds | 2,828 | April 29, 2021 | 3D Action Aliens Character Customization Cinematic Combat Controller First-Person FPS Gun Customization Military Multiplayer PvP Realistic Sci-fi Shooter Stealth Survival Tactical Third Person |
 | Command & Conquer™ 3: Kane’s Wrath | 2,824 | Nov. 13, 2009 | 3D Action Aliens Atmospheric Base Building Building Co-op Difficult Family Friendly FMV Grand Strategy Level Editor Multiplayer Post-apocalyptic RTS Sci-fi Singleplayer Story Rich Strategy War |
 | Aliens: Fireteam Elite 2 | 2,822 | Aug. 25, 2026 | Action Aliens Atmospheric Character Customization Controller Co-op Horror Military Multiplayer Online Co-Op PvE Realistic Sci-fi Shooter Singleplayer Space Team-Based Third Person Third-Person Shooter Violent |
 | Age of Wonders: Planetfall | 2,799 | Aug. 6, 2019 | 4X Aliens Character Customization City Builder Dinosaurs Economy Futuristic Hex Grid Management Multiplayer Perma Death PvP Sci-fi Singleplayer Space Strategy Tactical Turn-Based Turn-Based Strategy War |
 | Tower Dominion | 2,792 | May 7, 2025 | 3D Aliens Auto Battler Base Building Building Choices Matter Class-Based Isometric Military Procedural Generation Resource Management Roguelike Roguelite RTS Sci-fi Singleplayer Strategy Tactical Tower Defense War |
 | Tower Dominion Playtest | 2,788 | Dec. 13, 2024 | 3D Aliens Auto Battler Base Building Building Choices Matter Class-Based Isometric Military Procedural Generation Resource Management Roguelike Roguelite RTS Sci-fi Singleplayer Strategy Tactical Tower Defense War |
 | STAR WARS™ Battlefront | 2,720 | June 11, 2020 | Action Adventure Aliens Atmospheric Combat Co-op First-Person FPS Multiplayer Online Co-Op PvP Sci-fi Shooter Singleplayer Space Split Screen Strategy Third Person Third-Person Shooter Vehicular Combat |
 | Xenonauts | 2,701 | June 16, 2014 | 2D Aliens Atmospheric Base Building Cold War Grand Strategy Indie Isometric Management Remake Sci-fi Simulation Singleplayer Strategy Strategy RPG Tactical Turn-Based Turn-Based Combat Turn-Based Strategy Turn-Based Tactics |
 | HIVESWAP: ACT 1 | 2,688 | Sept. 14, 2017 | 2D Adventure Aliens Atmospheric Colorful Cute Difficult Exploration Family Friendly Female Protagonist Great Soundtrack Indie Memes Point & Click Psychological Horror Puzzle RPG Sci-fi Singleplayer Story Rich |
 | Freedom Planet | 2,515 | July 21, 2014 | 2D 2D Platformer Action Adventure Aliens Anime Classic Cute Difficult Fast-Paced Female Protagonist Funny Great Soundtrack Indie Pixel Graphics Platformer Retro Side Scroller Singleplayer Story Rich |