Best Aliens Games on Steam
Steam currently has 2,534 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 1/15/2025.
Looking for more? Explore other lists such as:
- Free aliens games on Steam
- Best aliens Steam Deck games
- Best aliens Linux games on Steam
- Best aliens Steam games for Mac OS
- Free Steam games
- Most played Steam games
- Best rated Steam games
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 94,590 reviews on Steam. This breaks down to a total of 92,974 positive reviews and 1,616 negative reviews — making it "Overwhelmingly Positive" on Steam.
It is priced at $59.99 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 232,687 reviews on Steam. This breaks down to a total of 227,088 positive reviews and 5,599 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 465,581 reviews on Steam. This breaks down to a total of 453,030 positive reviews and 12,551 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 27,046 reviews on Steam. This breaks down to a total of 26,583 positive reviews and 463 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 298,897 reviews on Steam. This breaks down to a total of 289,899 positive reviews and 8,998 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 | 1/24/2018 |
| Franchise | Unknown Worlds |
| Developer | Unknown Worlds Entertainment |
| Publisher | Unknown Worlds Entertainment |
| Steam App Id | 264710 |
6. 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 #6 spot for the best Aliens games. Its score was calculated by analyzing a total of 91,483 reviews on Steam. This breaks down to a total of 88,525 positive reviews and 2,958 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. Valve has also verified it as playable on the Steam Deck and will run well.
| Steam Price | $4.99 |
| Release Date | 6/23/2023 |
| Franchise | Blobfish Games |
| Developer | Blobfish |
| Publisher | Blobfish |
| Steam App Id | 1942280 |
7. 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 #7 spot for the best Aliens games. Its score was calculated by analyzing a total of 143,540 reviews on Steam. This breaks down to a total of 138,603 positive reviews and 4,937 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.
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 41,981 reviews on Steam. This breaks down to a total of 40,741 positive reviews and 1,240 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 6,519 reviews on Steam. This breaks down to a total of 6,380 positive reviews and 139 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. 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.
Abiotic Factor 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 24,719 reviews on Steam. This breaks down to a total of 23,879 positive reviews and 840 negative reviews — making it "Overwhelmingly Positive" on Steam.
It is priced at $24.99 to play and can be played and ran on Windows systems. At the moment, it is possible to play Abiotic Factor on the Steam Deck (though some functionality may be limited).
| Steam Price | $24.99 |
| Release Date | 5/2/2024 |
| Franchise | Playstack |
| Developer | Deep Field Games |
| Publishers | |
| Steam App Id | 427410 |
More Aliens Games
Explore even more rankings for the 100 best Aliens games available on Steam.
| Image | Name | Actions | ||||
|---|---|---|---|---|---|---|
| 266 | 3/23/2020 | 97 | $59.99 | Steam Charts | |
| 3,219 | 11/16/2004 | 96 | $9.99 | Steam Charts | |
| 18,028 | 10/23/2023 | 96 | $9.99 | Steam Charts | |
| 125 | 8/20/2022 | 96 | Free | Steam Charts | |
| 3,362 | 1/24/2018 | 96 | $29.99 | Steam Charts | |
| 10,503 | 6/23/2023 | 95 | $4.99 | Steam Charts | |
| 966 | 11/19/1998 | 95 | $9.99 | Steam Charts | |
| 18 | 10/10/2007 | 95 | ??? | Steam Charts | |
| 36 | 9/16/2022 | 94 | Free | Steam Charts | |
| 1,561 | 5/2/2024 | 94 | $24.99 | Steam Charts | |
 | 2,182 | 4/10/2024 | 94 | $23.99 | Steam Charts | |
 | 21 | 12/4/2023 | 94 | $4.99 | Steam Charts | |
 | 27 | 11/16/2023 | 94 | $19.99 | Steam Charts | |
 | 597 | 3/6/2020 | 94 | $19.99 | Steam Charts | |
 | 20 | 6/1/2006 | 94 | ??? | Steam Charts | |
 | 1 | 6/9/2023 | 94 | Free | Steam Charts | |
 | 1 | ??? | 93 | ??? | Steam Charts | |
 | 51 | 8/30/2006 | 93 | $4.99 | Steam Charts | |
 | 24 | 1/12/2024 | 93 | $10.49 | Steam Charts | |
 | 114 | 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, January 15). Steam Store. Steam Store.
- Valve Corporation. (2025, January 15). Half-Life: Alyx on Steam. Steam Store.
- Valve Corporation. (2025, January 7). Half-Life 2 on Steam. Steam Store.
- Valve Corporation. (2025, January 9). Lethal Company on Steam. Steam Store.
- Valve Corporation. (2025, January 11). Entropy : Zero 2 on Steam. Steam Store.
- Valve Corporation. (2025, January 9). Subnautica on Steam. Steam Store.
- Valve Corporation. (2025, January 14). Brotato on Steam. Steam Store.
- Valve Corporation. (2025, January 14). Half-Life on Steam. Steam Store.
- Valve Corporation. (2025, January 3). Half-Life 2: Episode Two on Steam. Steam Store.
- Valve Corporation. (2025, January 15). Half-Life 2: VR Mod on Steam. Steam Store.
- Valve Corporation. (2025, January 9). Abiotic Factor on Steam. Steam Store.