Best Aliens Games on Steam
Steam currently has 2,643 Aliens games available to download and play. Explore our list of the best picks ranked by Player Score. Our Player Score rankings are calculated directly from reviews left on the Steam store and will be updated in real-time as more players leave their feedback. Aliens game rankings were last updated on 3/23/2025.
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1. Half-Life: Alyx
Half-Life: Alyx is Valve’s VR return to the Half-Life series. It’s the story of an impossible fight against a vicious alien race known as the Combine, set between the events of Half-Life and Half-Life 2. Playing as Alyx Vance, you are humanity’s only chance for survival.
Half-Life: Alyx holds the #1 spot for "best Aliens game on Steam" with a Player Score of 97. Its score was calculated by analyzing a total of 95,951 reviews on Steam. This breaks down to a total of 94,297 positive reviews and 1,654 negative reviews — making it "Overwhelmingly Positive" on Steam.
It is priced at $17.99 to play and can be played and ran on Windows systems. At the moment, it is not possible to play or run Half-Life: Alyx on the Steam Deck.
2. Half-Life 2
Reawakened from stasis in the occupied metropolis of City 17, Gordon Freeman is joined by Alyx Vance as he leads a desperate human resistance. Experience the landmark first-person shooter packed with immersive world-building, boundary-pushing physics, and exhilarating combat.
Half-Life 2 has achieved a Player Score of 96, placing it in the #2 spot for the best Aliens games. Its score was calculated by analyzing a total of 239,865 reviews on Steam. This breaks down to a total of 234,102 positive reviews and 5,763 negative reviews — making it "Overwhelmingly Positive" on Steam.
It is priced at $9.99 to play and can be played and ran on both Windows and Linux systems. Valve has also verified it as playable on the Steam Deck and will run well.
3. Lethal Company
A co-op horror about scavenging at abandoned moons to sell scrap to the Company.
Lethal Company has achieved a Player Score of 96, placing it in the #3 spot for the best Aliens games. Its score was calculated by analyzing a total of 481,830 reviews on Steam. This breaks down to a total of 468,607 positive reviews and 13,223 negative reviews — making it "Overwhelmingly Positive" on Steam.
It is priced at $9.99 to play and can be played and ran on Windows systems. At the moment, it is possible to play Lethal Company on the Steam Deck (though some functionality may be limited).
4. Entropy : Zero 2
Bad Cop is back. Command a small army of Combine synths and soldiers on a Northern campaign to capture Dr. Judith Mossman. A modification for Half-Life 2.
Entropy : Zero 2 has achieved a Player Score of 96, placing it in the #4 spot for the best Aliens games. Its score was calculated by analyzing a total of 27,845 reviews on Steam. This breaks down to a total of 27,366 positive reviews and 479 negative reviews — making it "Overwhelmingly Positive" on Steam.
It is completely free to play and can be played and ran on both Windows and Linux systems. At the moment, it is possible to play Entropy : Zero 2 on the Steam Deck (though some functionality may be limited).
5. Subnautica
Descend into the depths of an alien underwater world filled with wonder and peril. Craft equipment, pilot submarines and out-smart wildlife to explore lush coral reefs, volcanoes, cave systems, and more - all while trying to survive.
Subnautica has achieved a Player Score of 96, placing it in the #5 spot for the best Aliens games. Its score was calculated by analyzing a total of 308,082 reviews on Steam. This breaks down to a total of 298,912 positive reviews and 9,170 negative reviews — making it "Overwhelmingly Positive" on Steam.
It is priced at $29.99 to play and can be played and ran on both Windows and Mac systems. Valve has also verified it as playable on the Steam Deck and will run well.
| Steam Price | $29.99 |
| Release Date | 1/23/2018 |
| Franchise | Unknown Worlds |
| Developer | Unknown Worlds Entertainment |
| Publisher | Unknown Worlds Entertainment |
| Steam App Id | 264710 |
6. Half-Life
Named Game of the Year by over 50 publications, Valve's debut title blends action and adventure with award-winning technology to create a frighteningly realistic world where players must think to survive. Also includes an exciting multiplayer mode that allows you to play against friends and enemies around the world.
Half-Life has achieved a Player Score of 95, placing it in the #6 spot for the best Aliens games. Its score was calculated by analyzing a total of 146,144 reviews on Steam. This breaks down to a total of 141,096 positive reviews and 5,048 negative reviews — making it "Overwhelmingly Positive" on Steam.
It is priced at $9.99 to play and can be played and ran on Windows, Mac, and Linux systems. Valve has also verified it as playable on the Steam Deck and will run well.
7. Brotato
Brotato is a top-down arena shooter roguelite where you play a potato wielding up to 6 weapons at a time to fight off hordes of aliens. Choose from a variety of traits and items to create unique builds and survive until help arrives.
Brotato has achieved a Player Score of 95, placing it in the #7 spot for the best Aliens games. Its score was calculated by analyzing a total of 94,769 reviews on Steam. This breaks down to a total of 91,659 positive reviews and 3,110 negative reviews — making it "Overwhelmingly Positive" on Steam.
It is priced at $2.99 to play and can be played and ran on Windows systems. Valve has also verified it as playable on the Steam Deck and will run well.
| Steam Price | $2.99 |
| Release Date | 6/23/2023 |
| Franchise | Blobfish Games |
| Developer | Blobfish |
| Publisher | Blobfish |
| Steam App Id | 1942280 |
8. 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.
Half-Life 2: Episode Two has achieved a Player Score of 95, placing it in the #8 spot for the best Aliens games. Its score was calculated by analyzing a total of 41,887 reviews on Steam. This breaks down to a total of 40,654 positive reviews and 1,233 negative reviews — making it "Overwhelmingly Positive" on Steam.
It is priced at $0.00 to play and can be played and ran on both Windows and Linux systems. Valve has also verified it as playable on the Steam Deck and will run well.
9. Half-Life 2: VR Mod
Half Life 2: VR Mod is a fan-made project, which adds full Virtual Reality support to the original 2004 PC gaming classic by Valve Software. Are you ready to become the Freeman?
Half-Life 2: VR Mod has achieved a Player Score of 94, placing it in the #9 spot for the best Aliens games. Its score was calculated by analyzing a total of 6,746 reviews on Steam. This breaks down to a total of 6,602 positive reviews and 144 negative reviews — making it "Overwhelmingly Positive" on Steam.
It is completely free to play and can be played and ran on Windows systems. At the moment, it is not possible to play or run Half-Life 2: VR Mod on the Steam Deck.
| Release Date | 9/16/2022 |
| Developer | Source VR Mod Team |
| Publishers | |
| Steam App Id | 658920 |
10. Picayune Dreams
Picayune Dreams is a roguelike blend of bullet heaven horde survival, and bullet hell gameplay. Adrift across the endless void, you must fend off thousands of nightmarish and otherwordly creatures. Uncover a mysterious and surreal story. And don't forget. You mu [TRANSMISSION INTERRUPTED...]
Picayune Dreams has achieved a Player Score of 94, placing it in the #10 spot for the best Aliens games. Its score was calculated by analyzing a total of 2,900 reviews on Steam. This breaks down to a total of 2,866 positive reviews and 34 negative reviews — making it "Overwhelmingly Positive" on Steam.
It is priced at $4.99 to play and can be played and ran on Windows systems. At the moment, it is possible to play Picayune Dreams on the Steam Deck (though some functionality may be limited).
| Steam Price | $4.99 |
| Release Date | 12/4/2023 |
| Franchise | 2 Left Thumbs |
| Developers | |
| Publisher | 2 Left Thumbs |
| Steam App Id | 2088840 |
More Aliens Games
Explore even more rankings for the 100 best Aliens games available on Steam.
| Image | Name | Actions | ||||
|---|---|---|---|---|---|---|
| 786 | 3/23/2020 | 97 | $17.99 | Steam Charts | |
| 2,531 | 11/16/2004 | 96 | $9.99 | Steam Charts | |
| 9,288 | 10/23/2023 | 96 | $9.99 | Steam Charts | |
| 131 | 8/20/2022 | 96 | Free | Steam Charts | |
| 4,819 | 1/23/2018 | 96 | $29.99 | Steam Charts | |
| 1,099 | 11/19/1998 | 95 | $9.99 | Steam Charts | |
| 4,818 | 6/23/2023 | 95 | $2.99 | Steam Charts | |
| 41 | 10/10/2007 | 95 | ??? | Steam Charts | |
| 68 | 9/16/2022 | 94 | Free | Steam Charts | |
| 135 | 12/4/2023 | 94 | $4.99 | Steam Charts | |
 | 3,789 | 5/2/2024 | 94 | $24.99 | Steam Charts | |
 | 4,000 | 4/10/2024 | 94 | $23.99 | Steam Charts | |
 | 37 | 11/16/2023 | 94 | $19.99 | Steam Charts | |
 | 800 | 3/6/2020 | 94 | $9.99 | Steam Charts | |
 | 20 | 6/1/2006 | 94 | ??? | Steam Charts | |
 | 1 | 6/9/2023 | 94 | Free | Steam Charts | |
 | 5 | ??? | 94 | ??? | Steam Charts | |
 | 9 | 1/12/2024 | 93 | $14.99 | Steam Charts | |
 | 99 | 8/30/2006 | 93 | $0.99 | Steam Charts | |
 | 149 | 11/1/1999 | 93 | $4.99 | Steam Charts |
Soures & References
Steambase has best-in-class data powered directly by Steam, our data partners, and in-house experts. Reviews and rankings are enriched, analyzed, and updated in real-time to ensure we surface the most up-to-date insights. Learn more about the Steambase approach to data collection and our review methodology.
- Valve Corporation. (2025, March 23). Steam Store. Steam Store.
- Valve Corporation. (2025, March 23). Half-Life: Alyx on Steam. Steam Store.
- Valve Corporation. (2025, March 21). Half-Life 2 on Steam. Steam Store.
- Valve Corporation. (2025, March 23). Lethal Company on Steam. Steam Store.
- Valve Corporation. (2025, March 23). Entropy : Zero 2 on Steam. Steam Store.
- Valve Corporation. (2025, March 21). Subnautica on Steam. Steam Store.
- Valve Corporation. (2025, March 21). Half-Life on Steam. Steam Store.
- Valve Corporation. (2025, March 20). Brotato on Steam. Steam Store.
- Valve Corporation. (2025, March 20). Half-Life 2: Episode Two on Steam. Steam Store.
- Valve Corporation. (2025, February 19). Half-Life 2: VR Mod on Steam. Steam Store.
- Valve Corporation. (2025, March 21). Picayune Dreams on Steam. Steam Store.