Best Sci-fi Games on Steam (for Mac OS)
Steam currently has 13,694 Sci-fi games, but not all of them are able to be played on Mac. 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 12/9/2025.
Looking for more? Explore other lists such as:
- Best sci-fi games on Steam
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- Free sci-fi games on Steam
- Free Steam games
- Most played Steam games
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1. 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 holds the #1 spot for "best Mac OS Sci-fi game on Steam" with a Player Score of 97. Its score was calculated by analyzing a total of 228,730 reviews on Steam. This breaks down to a total of 223,943 positive reviews and 4,787 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 |
2. Katana ZERO
Katana ZERO is a stylish neo-noir, action-platformer featuring breakneck action and instant-death combat. Slash, dash, and manipulate time to unravel your past in a beautifully brutal acrobatic display.
Katana ZERO has achieved a Player Score of 96, placing it in the #2 spot for the best Mac OS Sci-fi games. Its score was calculated by analyzing a total of 73,374 reviews on Steam. This breaks down to a total of 71,912 positive reviews and 1,462 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 Mac systems. Valve has also verified it as playable on the Steam Deck and will run well.
| Steam Price | $14.99 |
| Release Date | 4/18/2019 |
| Developer | Askiisoft |
| Publisher | Devolver Digital |
| Steam App Id | 460950 |
3. Rhythm Doctor
Save patients with your rhythm mastery! Rhythm Doctor is a rhythm game where you heal patients by defibrillating in time to their heartbeats. Learn each patient's unique heartbeat and defeat boss viruses trying to sabotage your rhythm, all set to heart-pumping, soul-soothing music.
Rhythm Doctor has achieved a Player Score of 96, placing it in the #3 spot for the best Mac OS Sci-fi games. Its score was calculated by analyzing a total of 22,185 reviews on Steam. This breaks down to a total of 21,837 positive reviews and 348 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. Valve has also verified it as playable on the Steam Deck and will run well.
| Steam Price | $14.99 |
| Release Date | 12/6/2025 |
| Franchise | 7th Beat Games |
| Developer | 7th Beat Games |
| Publishers | |
| Steam App Id | 774181 |
4. Stray
Lost, alone and separated from family, a stray cat must untangle an ancient mystery to escape a long-forgotten cybercity and find their way home.
Stray has achieved a Player Score of 96, placing it in the #4 spot for the best Mac OS Sci-fi games. Its score was calculated by analyzing a total of 164,459 reviews on Steam. This breaks down to a total of 159,910 positive reviews and 4,549 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 | 7/19/2022 |
| Franchise | Annapurna Interactive |
| Developer | BlueTwelve Studio |
| Publisher | Annapurna Interactive |
| Steam App Id | 1332010 |
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 Mac OS Sci-fi games. Its score was calculated by analyzing a total of 330,964 reviews on Steam. This breaks down to a total of 320,992 positive reviews and 9,972 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 |
| Publishers | |
| Steam App Id | 264710 |
6. 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 #6 spot for the best Mac OS Sci-fi games. Its score was calculated by analyzing a total of 135,625 reviews on Steam. This breaks down to a total of 131,277 positive reviews and 4,348 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 |
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 Mac OS Sci-fi games. Its score was calculated by analyzing a total of 154,335 reviews on Steam. This breaks down to a total of 148,973 positive reviews and 5,362 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. 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 #8 spot for the best Mac OS Sci-fi games. Its score was calculated by analyzing a total of 107,023 reviews on Steam. This breaks down to a total of 103,388 positive reviews and 3,635 negative reviews — making it "Overwhelmingly Positive" on Steam.
It is priced at $2.99 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 | $2.99 |
| Release Date | 6/23/2023 |
| Franchise | Blobfish Games |
| Developer | Blobfish |
| Publisher | Blobfish |
| Steam App Id | 1942280 |
9. 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 #9 spot for the best Mac OS Sci-fi games. Its score was calculated by analyzing a total of 130,007 reviews on Steam. This breaks down to a total of 125,380 positive reviews and 4,627 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 |
10. Gunpoint
Gunpoint is a stealth puzzle game that lets you rewire its levels to trick people. You play a freelance spy who takes jobs from his clients to break into high security buildings and steal sensitive data.
Gunpoint has achieved a Player Score of 95, placing it in the #10 spot for the best Mac OS Sci-fi games. Its score was calculated by analyzing a total of 13,203 reviews on Steam. This breaks down to a total of 12,880 positive reviews and 323 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. At the moment, it is possible to play Gunpoint on the Steam Deck (though some functionality may be limited).
| Steam Price | $9.99 |
| Release Date | 6/3/2013 |
| Franchise | Suspicious Developments |
| Developer | Suspicious Developments |
| Publisher | Suspicious Developments |
| Steam App Id | 206190 |
More Sci-fi Mac Games on Steam
Explore even more rankings for the 10 best Sci-fi games available on Steam.
| Image | Name | Actions | ||||
|---|---|---|---|---|---|---|
| 26,655 | 10/17/2018 | 97 | $34.99 | Steam Charts | |
| 63 | 4/18/2019 | 96 | $14.99 | Steam Charts | |
| 1,915 | 12/6/2025 | 96 | $14.99 | Steam Charts | |
| 350 | 7/19/2022 | 96 | $29.99 | Steam Charts | |
| 2,831 | 1/23/2018 | 96 | $29.99 | Steam Charts | |
| 15,959 | 7/30/2019 | 95 | $24.99 | Steam Charts | |
| 821 | 11/19/1998 | 95 | $9.99 | Steam Charts | |
| 9,491 | 6/23/2023 | 95 | $2.99 | Steam Charts | |
| 228 | 9/4/2013 | 95 | $14.99 | Steam Charts | |
| 4 | 6/3/2013 | 95 | $9.99 | 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, December 9). Steam Store. Steam Store.
- Valve Corporation. (2025, December 9). RimWorld on Steam. Steam Store.
- Valve Corporation. (2025, October 21). Katana ZERO on Steam. Steam Store.
- Valve Corporation. (2025, December 8). Rhythm Doctor on Steam. Steam Store.
- Valve Corporation. (2025, December 3). Stray on Steam. Steam Store.
- Valve Corporation. (2025, November 26). Subnautica on Steam. Steam Store.
- Valve Corporation. (2025, December 9). Oxygen Not Included on Steam. Steam Store.
- Valve Corporation. (2025, November 28). Half-Life on Steam. Steam Store.
- Valve Corporation. (2025, December 5). Brotato on Steam. Steam Store.
- Valve Corporation. (2025, November 26). Outlast on Steam. Steam Store.
- Valve Corporation. (2025, November 26). Gunpoint on Steam. Steam Store.