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Best Aliens Games

Top 50 of 171 qualifying games — tagged Aliens (community voting), 1,000+ reviews · ranked by Wilson lower bound on Steam review score · review data as of 2026-05-20.

1 Angel at Dusk (2024) Action · Bullet Hell · Shooter · 200K–500K owners · $14.99 99.1%1,420 reviews 2 Half-Life: Alyx (2020) VR · FPS · Story Rich · 2M–5M owners · $59.99 98.3%97,229 reviews 3 420BLAZEIT 2: GAME OF THE YEAR -=Dank Dreams and Goated Memes=- [#wow/11 Like and Subscribe] Poggerz Edition (2024) Satire · Action · FPS · 20K–50K owners · $10.99 98.7%1,204 reviews 4 Loddlenaut (2023) Underwater · Relaxing · Open World · 100K–200K owners · $19.99 98.1%4,399 reviews 5 Half-Life 2 (2004) FPS · Action · Sci-fi · 10M–20M owners · $9.99 97.6%245,627 reviews 6 Lethal Company (2023) Online Co-Op · Horror · First-Person · 10M–20M owners · $9.99 97.2%487,160 reviews 7 Subnautica (2018) Open World Survival Craft · Survival · Horror · 5M–10M owners · $7.49 97.0%313,707 reviews 8 Half-Life 2: Episode Two (2007) FPS · Action · Sci-fi · 5M–10M owners · $19.99 97.1%41,782 reviews 9 Half-Life (1998) FPS · Classic · 1990's · 10M–20M owners · $9.99 96.5%148,221 reviews 10 Insaniquarium Deluxe (2006) Casual · Classic · Underwater · 500K–1M owners · $4.99 96.8%5,923 reviews 11 Abiotic Factor (2025) Survival · Online Co-Op · Open World Survival Craft · 500K–1M owners · $34.99 96.4%31,274 reviews 12 Bit Blaster XL (2016) Bullet Hell · Shoot 'Em Up · Difficult · 500K–1M owners · $0.99 96.4%6,148 reviews 13 The Planet Crafter (2024) Open World Survival Craft · Base-Building · Survival · 1M–2M owners · $23.99 96.0%54,316 reviews 14 Defense Grid: The Awakening (2008) Tower Defense · Strategy · Sci-fi · 500K–1M owners · $9.99 96.2%5,142 reviews 15 Half-Life 2: Episode One (2006) FPS · Action · Sci-fi · 5M–10M owners · $19.99 95.8%31,822 reviews 16 1000xRESIST (2024) Female Protagonist · Thriller · Futuristic · 200K–500K owners · $19.99 96.0%4,280 reviews 17 RetroMaze (2018) Casual · Indie · Retro · 200K–500K owners · $0.99 96.4%1,460 reviews 18 Black Mesa (2020) FPS · Remake · Action · 2M–5M owners · $19.99 95.2%127,693 reviews 19 Half-Life: Opposing Force (1999) FPS · Action · Classic · 2M–5M owners · $4.99 95.3%25,561 reviews 20 The Riftbreaker: Prologue (2020) Base-Building · Strategy · Hack and Slash · 200K–500K owners · Free 95.5%4,100 reviews 21 Vertigo 2 (2023) VR · Indie · Sci-fi · 200K–500K owners · $29.99 95.5%2,440 reviews 22 Alien Swarm: Reactive Drop (2017) Twin Stick Shooter · PvE · Top-Down Shooter · 200K–500K owners · Free 94.9%22,649 reviews 23 EARTH DEFENSE FORCE 4.1 The Shadow of New Despair (2016) Action · Third-Person Shooter · Co-op · 1M–2M owners · $19.99 95.0%10,054 reviews 24 Alien Swarm (2010) Free to Play · Co-op · Action · 2M–5M owners · Free 94.9%21,274 reviews 25 Alien Shooter (2009) Shooter · Action · Gore · 500K–1M owners · $4.99 95.2%4,285 reviews 26 Freedom Planet (2014) Platformer · Great Soundtrack · Action · 100K–200K owners · $14.99 95.1%4,748 reviews 27 X-COM: UFO Defense (2008) Strategy · Classic · Turn-Based Strategy · 1M–2M owners · $4.99 94.8%3,799 reviews 28 EARTH DEFENSE FORCE 5 (2019) Action · Online Co-Op · Third-Person Shooter · 1M–2M owners · $59.99 94.5%10,763 reviews 29 Marvel's Guardians of the Galaxy (2021) Singleplayer · Story Rich · Action · 500K–1M owners · $59.99 94.1%39,158 reviews 30 Dead Space 2 (2011) Horror · Survival Horror · Third-Person Shooter · 1M–2M owners · $19.99 94.0%25,946 reviews 31 Command & Conquer 3: Kane’s Wrath (2009) Family Friendly · Level Editor · Strategy · 200K–500K owners · $19.88 94.2%5,072 reviews 32 XCOM: Enemy Unknown (2012) Turn-Based Strategy · Tactical · Strategy · 2M–5M owners · $5.99 93.4%56,414 reviews 33 Alien: Isolation (2014) Horror · Survival Horror · Sci-fi · 2M–5M owners · $39.99 93.2%60,831 reviews 34 STASIS: BONE TOTEM (2023) Point & Click · Adventure · Isometric · 100K–200K owners · $19.99 93.9%2,289 reviews 35 Serious Sam HD: The First Encounter (2009) FPS · Action · Shooter · 1M–2M owners · $14.99 93.4%8,191 reviews 36 Infested Planet (2014) Strategy · Tower Defense · Action · 200K–500K owners · $14.99 93.6%2,957 reviews 37 Soda Crisis (2022) Side Scroller · Runner · Shoot 'Em Up · 200K–500K owners · $6.59 93.4%3,025 reviews 38 Halo: The Master Chief Collection (2019) Great Soundtrack · FPS · Classic · 5M–10M owners · $39.99 92.4%242,067 reviews 39 SPORE (2008) God Game · Open World · Sandbox · 2M–5M owners · $19.99 92.4%66,120 reviews 40 Half-Life: Blue Shift (2001) FPS · Action · Sci-fi · 1M–2M owners · $4.99 92.5%18,794 reviews 41 Machinika: Museum (2021) Puzzle · Mystery · Point & Click · 100K–200K owners · $7.99 92.6%5,623 reviews 42 Destroy All Humans! (2020) Action · Adventure · Villain Protagonist · 1M–2M owners · $29.99 92.4%10,837 reviews 43 HIVESWAP: ACT 1 (2017) Adventure · Point & Click · Great Soundtrack · 200K–500K owners · $7.99 92.7%3,948 reviews 44 Rodina (2014) Space · Exploration · Open World · 50K–100K owners · $14.99 93.3%1,327 reviews 45 Among Us (2018) Multiplayer · Social Deduction · Online Co-Op · 20M–50M owners · $4.99 91.9%700,785 reviews 46 Dead Space (2008) (2009) Horror · Sci-fi · Action · 2M–5M owners · $19.99 91.8%27,660 reviews 47 Starcom: Unknown Space (2024) Space · Exploration · Open World · 100K–200K owners · $24.99 92.4%3,168 reviews 48 X-Morph: Defense (2017) Tower Defense · Strategy · Action · 200K–500K owners · $19.99 91.7%3,823 reviews 49 Alien Shooter 2: Reloaded (2009) Aliens · Looter Shooter · Shoot 'Em Up · 200K–500K owners · $4.99 91.7%3,283 reviews 50 Wall World (2023) Rogue-lite · Mining · Pixel Graphics · 500K–1M owners · $6.99 91.3%10,001 reviews