Best Sci-fi Steam Deck Games
Steam currently has 13,859 Sci-fi games, but not all of them can be played on the Steam Deck. Explore our list with 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 1/6/2026.
Looking for more? Explore other lists such as:
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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 Sci-fi Steam Deck game" with a Player Score of 98. Its score was calculated by analyzing a total of 450,562 reviews on Steam. This breaks down to a total of 444,705 positive reviews and 5,857 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 Sci-fi Steam Deck games. Its score was calculated by analyzing a total of 188,695 reviews on Steam. This breaks down to a total of 185,882 positive reviews and 2,813 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 Sci-fi Steam Deck games. Its score was calculated by analyzing a total of 230,539 reviews on Steam. This breaks down to a total of 225,697 positive reviews and 4,842 negative reviews — making it "Overwhelmingly Positive" on Steam.
It is priced at $27.99 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 | $27.99 |
| 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 97, placing it in the #4 spot for the best Sci-fi Steam Deck games. Its score was calculated by analyzing a total of 263,048 reviews on Steam. This breaks down to a total of 256,771 positive reviews and 6,277 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. ULTRAKILL
ULTRAKILL is a fast-paced ultraviolent retro FPS combining the skill-based style scoring from character action games with unadulterated carnage inspired by the best shooters of the '90s. Rip apart your foes with varied destructive weapons and shower in their blood to regain your health.
ULTRAKILL has achieved a Player Score of 96, placing it in the #5 spot for the best Sci-fi Steam Deck games. Its score was calculated by analyzing a total of 198,879 reviews on Steam. This breaks down to a total of 194,159 positive reviews and 4,720 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. Valve has also verified it as playable on the Steam Deck and will run well.
| Steam Price | $24.99 |
| Release Date | 9/3/2020 |
| Franchise | New Blood Interactive |
| Developer | Arsi "Hakita" Patala |
| Publisher | New Blood Interactive |
| Steam App Id | 1229490 |
6. 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 #6 spot for the best Sci-fi Steam Deck games. Its score was calculated by analyzing a total of 73,745 reviews on Steam. This breaks down to a total of 72,265 positive reviews and 1,480 negative reviews — making it "Overwhelmingly Positive" on Steam.
It is priced at $8.99 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 | $8.99 |
| Release Date | 4/18/2019 |
| Developer | Askiisoft |
| Publisher | Devolver Digital |
| Steam App Id | 460950 |
7. ATRI -My Dear Moments-
"As the world sank, I found you." In the near future, a sudden and unexplained sea rise has left much of human civilization underwater. In a little town slowly being enveloped by the ocean, an unforgettable summer is about to begin for a boy and a mysterious robot girl...
ATRI -My Dear Moments- has achieved a Player Score of 96, placing it in the #7 spot for the best Sci-fi Steam Deck games. Its score was calculated by analyzing a total of 22,121 reviews on Steam. This breaks down to a total of 21,795 positive reviews and 326 negative reviews — making it "Overwhelmingly Positive" on Steam.
It is priced at $9.44 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 | $9.44 |
| Release Date | 6/18/2020 |
| Franchise | ANIPLEX.EXE |
| Developers | |
| Publishers | |
| Steam App Id | 1230140 |
8. 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 #8 spot for the best Sci-fi Steam Deck games. Its score was calculated by analyzing a total of 24,552 reviews on Steam. This breaks down to a total of 24,137 positive reviews and 415 negative reviews — making it "Overwhelmingly Positive" on Steam.
It is priced at $15.99 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 | $15.99 |
| Release Date | 12/6/2025 |
| Franchise | 7th Beat Games |
| Developer | 7th Beat Games |
| Publishers | |
| Steam App Id | 774181 |
9. 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 #9 spot for the best Sci-fi Steam Deck games. Its score was calculated by analyzing a total of 335,058 reviews on Steam. This breaks down to a total of 324,994 positive reviews and 10,064 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 |
10. 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 #10 spot for the best Sci-fi Steam Deck games. Its score was calculated by analyzing a total of 166,051 reviews on Steam. This breaks down to a total of 161,458 positive reviews and 4,593 negative reviews — making it "Overwhelmingly Positive" on Steam.
It is priced at $17.99 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 | $17.99 |
| Release Date | 7/19/2022 |
| Franchise | Annapurna Interactive |
| Developer | BlueTwelve Studio |
| Publisher | Annapurna Interactive |
| Steam App Id | 1332010 |
More Sci-fi Steam Deck Verified Games
Explore even more rankings for the 10 best Sci-fi games available on Steam.
| Image | Name | Actions | ||||
|---|---|---|---|---|---|---|
| 3,463 | 4/18/2011 | 98 | $9.99 | Steam Charts | |
| 1,057 | 10/10/2007 | 97 | $9.99 | Steam Charts | |
| 27,069 | 10/17/2018 | 97 | $27.99 | Steam Charts | |
| 2,954 | 11/16/2004 | 97 | $9.99 | Steam Charts | |
| 3,123 | 9/3/2020 | 96 | $24.99 | Steam Charts | |
| 151 | 4/18/2019 | 96 | $8.99 | Steam Charts | |
| 16 | 6/18/2020 | 96 | $9.44 | Steam Charts | |
| 319 | 12/6/2025 | 96 | $15.99 | Steam Charts | |
| 7,694 | 1/23/2018 | 96 | $29.99 | Steam Charts | |
| 1,101 | 7/19/2022 | 96 | $17.99 | 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. (2026, January 6). Steam Store. Steam Store.
- Valve Corporation. (2026, January 6). Portal 2 on Steam. Steam Store.
- Valve Corporation. (2026, January 6). Portal on Steam. Steam Store.
- Valve Corporation. (2026, January 1). RimWorld on Steam. Steam Store.
- Valve Corporation. (2026, January 6). Half-Life 2 on Steam. Steam Store.
- Valve Corporation. (2026, January 5). ULTRAKILL on Steam. Steam Store.
- Valve Corporation. (2025, December 31). Katana ZERO on Steam. Steam Store.
- Valve Corporation. (2025, December 11). ATRI -My Dear Moments- on Steam. Steam Store.
- Valve Corporation. (2026, January 5). Rhythm Doctor on Steam. Steam Store.
- Valve Corporation. (2026, January 5). Subnautica on Steam. Steam Store.
- Valve Corporation. (2025, December 26). Stray on Steam. Steam Store.