Best Sci-fi Linux Games on Steam
Steam currently has 12,208 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 6/6/2025.
Looking for more? Explore other lists such as:
- Best sci-fi games on Steam
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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 433,438 reviews on Steam. This breaks down to a total of 427,763 positive reviews and 5,675 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.
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 177,735 reviews on Steam. This breaks down to a total of 175,016 positive reviews and 2,719 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 210,503 reviews on Steam. This breaks down to a total of 206,203 positive reviews and 4,300 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 245,478 reviews on Steam. This breaks down to a total of 239,574 positive reviews and 5,904 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 28,611 reviews on Steam. This breaks down to a total of 28,125 positive reviews and 486 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 36,457 reviews on Steam. This breaks down to a total of 35,522 positive reviews and 935 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 128,290 reviews on Steam. This breaks down to a total of 124,125 positive reviews and 4,165 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 148,216 reviews on Steam. This breaks down to a total of 143,084 positive reviews and 5,132 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 41,772 reviews on Steam. This breaks down to a total of 40,546 positive reviews and 1,226 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 125,650 reviews on Steam. This breaks down to a total of 121,192 positive reviews and 4,458 negative reviews — making it "Overwhelmingly Positive" on Steam.
It is priced at $14.99 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 | $14.99 |
| 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 | ||||
|---|---|---|---|---|---|---|
| 3,054 | 4/18/2011 | 98 | $9.99 | Steam Charts | |
| 799 | 10/10/2007 | 97 | $9.99 | Steam Charts | |
| 25,928 | 10/17/2018 | 97 | $34.99 | Steam Charts | |
| 2,377 | 11/16/2004 | 96 | $9.99 | Steam Charts | |
| 107 | 8/20/2022 | 96 | Free | Steam Charts | |
| 118 | 6/21/2016 | 95 | $14.99 | Steam Charts | |
| 8,837 | 7/30/2019 | 95 | $24.99 | Steam Charts | |
| 816 | 11/19/1998 | 95 | $9.99 | Steam Charts | |
| 20 | 10/10/2007 | 95 | ??? | Steam Charts | |
| 275 | 9/4/2013 | 95 | $14.99 | 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, June 6). Steam Store. Steam Store.
- Valve Corporation. (2025, June 6). Portal 2 on Steam. Steam Store.
- Valve Corporation. (2025, June 6). Portal on Steam. Steam Store.
- Valve Corporation. (2025, June 6). RimWorld on Steam. Steam Store.
- Valve Corporation. (2025, June 6). Half-Life 2 on Steam. Steam Store.
- Valve Corporation. (2025, May 14). Entropy : Zero 2 on Steam. Steam Store.
- Valve Corporation. (2025, May 14). VA-11 Hall-A: Cyberpunk Bartender Action on Steam. Steam Store.
- Valve Corporation. (2025, June 6). Oxygen Not Included on Steam. Steam Store.
- Valve Corporation. (2025, June 3). Half-Life on Steam. Steam Store.
- Valve Corporation. (2025, June 6). Half-Life 2: Episode Two on Steam. Steam Store.
- Valve Corporation. (2025, June 3). Outlast on Steam. Steam Store.