Best Sci-fi Linux Games on Steam
Steam currently has 11,372 Sci-fi games, but not all of them are able to be played on Linux builds. 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. Sci-fi game rankings were last updated on 2/11/2025.
Looking for more? Explore other lists such as:
- Best sci-fi games on Steam
- Best sci-fi Steam Deck games
- Best sci-fi Steam games (for Mac OS)
- Free sci-fi games on Steam
- Free Steam games
- Most played Steam games
- Best rated Steam games
1. Portal 2
The "Perpetual Testing Initiative" has been expanded to allow you to design co-op puzzles for you and your friends!
Portal 2 holds the #1 spot for "best Linux Sci-fi game on Steam" with a Player Score of 98. Its score was calculated by analyzing a total of 422,631 reviews on Steam. This breaks down to a total of 417,114 positive reviews and 5,517 negative reviews — making it "Overwhelmingly Positive" on Steam.
It is priced at $0.99 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.
2. Portal
Portal™ is a new single player game from Valve. Set in the mysterious Aperture Science Laboratories, Portal has been called one of the most innovative new games on the horizon and will offer gamers hours of unique gameplay.
Portal has achieved a Player Score of 97, placing it in the #2 spot for the best Linux Sci-fi games. Its score was calculated by analyzing a total of 173,007 reviews on Steam. This breaks down to a total of 170,351 positive reviews and 2,656 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. RimWorld
A sci-fi colony sim driven by an intelligent AI storyteller. Generates stories by simulating psychology, ecology, gunplay, melee combat, climate, biomes, diplomacy, interpersonal relationships, art, medicine, trade, and more.
RimWorld has achieved a Player Score of 97, placing it in the #3 spot for the best Linux Sci-fi games. Its score was calculated by analyzing a total of 203,676 reviews on Steam. This breaks down to a total of 199,552 positive reviews and 4,124 negative reviews — making it "Overwhelmingly Positive" on Steam.
It is priced at $34.99 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.
| Steam Price | $34.99 |
| Release Date | 10/17/2018 |
| Developer | Ludeon Studios |
| Publisher | Ludeon Studios |
| Steam App Id | 294100 |
4. 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 #4 spot for the best Linux Sci-fi games. Its score was calculated by analyzing a total of 236,046 reviews on Steam. This breaks down to a total of 230,362 positive reviews and 5,684 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.
5. 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 #5 spot for the best Linux Sci-fi games. Its score was calculated by analyzing a total of 27,447 reviews on Steam. This breaks down to a total of 26,977 positive reviews and 470 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).
6. VA-11 Hall-A: Cyberpunk Bartender Action
VA-11 HALL-A: Cyberpunk Bartender Action is a booze em' up about waifus, technology, and post-dystopia life.
VA-11 Hall-A: Cyberpunk Bartender Action has achieved a Player Score of 95, placing it in the #6 spot for the best Linux Sci-fi games. Its score was calculated by analyzing a total of 35,703 reviews on Steam. This breaks down to a total of 34,795 positive reviews and 908 negative reviews — making it "Overwhelmingly Positive" on Steam.
It is priced at $14.99 to play and can be played and ran on both Windows and Linux systems. At the moment, it is possible to play VA-11 Hall-A: Cyberpunk Bartender Action on the Steam Deck (though some functionality may be limited).
| Steam Price | $14.99 |
| Release Date | 6/21/2016 |
| Franchise | Ysbryd Games |
| Developer | Sukeban Games |
| Publishers | |
| Steam App Id | 447530 |
7. Oxygen Not Included
Oxygen Not Included is a space-colony simulation game. Deep inside an alien space rock your industrious crew will need to master science, overcome strange new lifeforms, and harness incredible space tech to survive, and possibly, thrive.
Oxygen Not Included has achieved a Player Score of 95, placing it in the #7 spot for the best Linux Sci-fi games. Its score was calculated by analyzing a total of 125,500 reviews on Steam. This breaks down to a total of 121,434 positive reviews and 4,066 negative reviews — making it "Overwhelmingly Positive" on Steam.
It is priced at $24.99 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.
| Steam Price | $24.99 |
| Release Date | 7/30/2019 |
| Franchise | Klei |
| Developer | Klei Entertainment |
| Publisher | Klei Entertainment |
| Steam App Id | 457140 |
8. 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 #8 spot for the best Linux Sci-fi games. Its score was calculated by analyzing a total of 144,696 reviews on Steam. This breaks down to a total of 139,709 positive reviews and 4,987 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.
9. 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 #9 spot for the best Linux Sci-fi games. Its score was calculated by analyzing a total of 41,945 reviews on Steam. This breaks down to a total of 40,707 positive reviews and 1,238 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.
10. Outlast
Hell is an experiment you can't survive in Outlast, a first-person survival horror game developed by veterans of some of the biggest game franchises in history. As investigative journalist Miles Upshur, explore Mount Massive Asylum and try to survive long enough to discover its terrible secret... if you dare.
Outlast has achieved a Player Score of 95, placing it in the #10 spot for the best Linux Sci-fi games. Its score was calculated by analyzing a total of 123,465 reviews on Steam. This breaks down to a total of 119,087 positive reviews and 4,378 negative reviews — making it "Overwhelmingly Positive" on Steam.
It is priced at $19.99 to play and can be played and ran on Windows, Mac, and Linux systems. At the moment, it is possible to play Outlast on the Steam Deck (though some functionality may be limited).
| Steam Price | $19.99 |
| Release Date | 9/4/2013 |
| Franchise | Red Barrels |
| Developer | Red Barrels |
| Publisher | Red Barrels |
| Steam App Id | 238320 |
More Sci-fi Linux Games on Steam
Explore even more rankings for the 10 best Sci-fi games available on Steam.
| Image | Name | Actions | ||||
|---|---|---|---|---|---|---|
| 3,653 | 4/18/2011 | 98 | $0.99 | Steam Charts | |
| 282 | 10/10/2007 | 97 | $9.99 | Steam Charts | |
| 19,019 | 10/17/2018 | 97 | $34.99 | Steam Charts | |
| 1,606 | 11/16/2004 | 96 | $9.99 | Steam Charts | |
| 91 | 8/20/2022 | 96 | Free | Steam Charts | |
| 67 | 6/21/2016 | 95 | $14.99 | Steam Charts | |
| 6,691 | 7/30/2019 | 95 | $24.99 | Steam Charts | |
| 472 | 11/19/1998 | 95 | $9.99 | Steam Charts | |
| 18 | 10/10/2007 | 95 | ??? | Steam Charts | |
| 170 | 9/4/2013 | 95 | $19.99 | 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, February 11). Steam Store. Steam Store.
- Valve Corporation. (2025, February 11). Portal 2 on Steam. Steam Store.
- Valve Corporation. (2025, February 5). Portal on Steam. Steam Store.
- Valve Corporation. (2025, February 13). RimWorld on Steam. Steam Store.
- Valve Corporation. (2025, February 11). Half-Life 2 on Steam. Steam Store.
- Valve Corporation. (2025, January 25). Entropy : Zero 2 on Steam. Steam Store.
- Valve Corporation. (2025, January 22). VA-11 Hall-A: Cyberpunk Bartender Action on Steam. Steam Store.
- Valve Corporation. (2025, February 13). Oxygen Not Included on Steam. Steam Store.
- Valve Corporation. (2025, February 5). Half-Life on Steam. Steam Store.
- Valve Corporation. (2025, February 11). Half-Life 2: Episode Two on Steam. Steam Store.
- Valve Corporation. (2025, February 2). Outlast on Steam. Steam Store.