Free Space Games on Steam
Steam currently has 6,149 Space games available to download and play. Explore our list of the best free games ranked by popularity and ratings. Data for this list is calculated from reviews and player counts reported directly by Steam and will be updated in real-time. Free Space game rankings were last updated on 5/9/2025.
Looking for more? Explore other lists such as:
- Best space games on Steam
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- Most played Steam games
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1. Warframe
Awaken as an unstoppable warrior and battle alongside your friends in this story-driven free-to-play online action game
Warframe holds the #1 spot for "best free Space game on Steam" with a Player Score of 87. Its score was calculated by analyzing a total of 617,100 reviews on Steam. This breaks down to a total of 540,060 positive reviews and 77,040 negative reviews — making it "Very Positive" on Steam.
It can be played and ran on Windows systems. Valve has also verified it as playable on the Steam Deck and will run well.
| Release Date | 3/25/2013 |
| Developer | Digital Extremes |
| Publisher | Digital Extremes |
| Steam App Id | 230410 |
2. Destiny 2
Destiny 2 is an action MMO with a single evolving world that you and your friends can join anytime, anywhere, absolutely free.
Destiny 2 has achieved a Player Score of 79, placing it in the #2 spot for the best free Space games. Its score was calculated by analyzing a total of 623,876 reviews on Steam. This breaks down to a total of 496,893 positive reviews and 126,983 negative reviews — making it "Mostly Positive" on Steam.
It can be played and ran on Windows systems. At the moment, it is not possible to play or run Destiny 2 on the Steam Deck.
3. Unnamed Space Idle
Destroy endless waves of alien ships that have all but wiped out humanity in this long form, unfolding, sci-fi idle game. Customize your ship with different weapons and defenses to defeat specific enemy types and utilize a ton of different systems to increase your overall power.
Unnamed Space Idle has achieved a Player Score of 89, placing it in the #3 spot for the best free Space games. Its score was calculated by analyzing a total of 2,792 reviews on Steam. This breaks down to a total of 2,595 positive reviews and 197 negative reviews — making it "Very Positive" on Steam.
It can be played and ran on both Windows and Linux systems. At the moment, it is possible to play Unnamed Space Idle on the Steam Deck (though some functionality may be limited).
| Release Date | 7/27/2023 |
| Developer | Sylv |
| Publishers | |
| Steam App Id | 2471100 |
4. Cell to Singularity - Evolution Never Ends
The epic story of evolution, technology, humanity, and dinosaurs is yours to tap.
Cell to Singularity - Evolution Never Ends has achieved a Player Score of 88, placing it in the #4 spot for the best free Space games. Its score was calculated by analyzing a total of 23,515 reviews on Steam. This breaks down to a total of 21,129 positive reviews and 2,386 negative reviews — making it "Very Positive" on Steam.
It can be played and ran on both Windows and Mac systems. At the moment, it is possible to play Cell to Singularity - Evolution Never Ends on the Steam Deck (though some functionality may be limited).
| Release Date | 11/3/2021 |
| Developer | Computer Lunch |
| Publisher | Computer Lunch |
| Steam App Id | 977400 |
5. EVE Online
EVE Online is a free-to-play community driven space MMO where players can choose their own path from countless different options. Experience space exploration, immense PvP and PvE battles, mining, industry and a thriving player economy in an ever-expanding sandbox.
EVE Online has achieved a Player Score of 73, placing it in the #5 spot for the best free Space games. Its score was calculated by analyzing a total of 36,223 reviews on Steam. This breaks down to a total of 26,708 positive reviews and 9,515 negative reviews — making it "Mostly Positive" on Steam.
It can be played and ran on both Windows and Mac systems. At the moment, it is possible to play EVE Online on the Steam Deck (though some functionality may be limited).
6. STAR WARS™: The Old Republic™
STAR WARS™: The Old Republic™ is a free-to-play MMORPG that puts you at the center of your own story-driven saga. Play as a Jedi, Sith, Bounty Hunter, or one of many other iconic STAR WARS roles in the galaxy far, far away over three thousand years before the classic films.
STAR WARS™: The Old Republic™ has achieved a Player Score of 88, placing it in the #6 spot for the best free Space games. Its score was calculated by analyzing a total of 67,181 reviews on Steam. This breaks down to a total of 60,179 positive reviews and 7,002 negative reviews — making it "Very Positive" on Steam.
It can be played and ran on Windows systems. At the moment, it is possible to play STAR WARS™: The Old Republic™ on the Steam Deck (though some functionality may be limited).
| Release Date | 7/21/2020 |
| Franchise | BioWare EA |
| Developers | |
| Publisher | Electronic Arts |
| Steam App Id | 1286830 |
7. Galaxy Idle Clicker
Embark on an interstellar journey with Galaxy Idle Clicker! Conquer galaxies, upgrade your spaceship, and face off against a myriad of enemy ships. With engaging minigames, powerful upgrades, GIC delivers an unparalleled idle space adventure. Join the cosmic conquest today and dominate the universe!
Galaxy Idle Clicker has achieved a Player Score of 72, placing it in the #7 spot for the best free Space games. Its score was calculated by analyzing a total of 640 reviews on Steam. This breaks down to a total of 481 positive reviews and 159 negative reviews — making it "Mostly Positive" on Steam.
It can be played and ran on Windows systems. At the moment, it is possible to play Galaxy Idle Clicker on the Steam Deck (though some functionality may be limited).
8. Antimatter Dimensions
Earn antimatter through dimensions! Gain Infinite antimatter to collapse the universe!
Antimatter Dimensions has achieved a Player Score of 89, placing it in the #8 spot for the best free Space games. Its score was calculated by analyzing a total of 3,623 reviews on Steam. This breaks down to a total of 3,345 positive reviews and 278 negative reviews — making it "Very Positive" on Steam.
It can be played and ran on both Windows and Mac systems. At the moment, it is possible to play Antimatter Dimensions on the Steam Deck (though some functionality may be limited).
| Release Date | 12/17/2022 |
| Developers | |
| Publishers | |
| Steam App Id | 1399720 |
9. Starward
The Steam version of 《Starward》 is an Asian server version, and the account is not compatible with other servers. Starward is a 3D fighting game that integrates mecha girls and classic GVG combat gameplay, with 1V1 and 2V2 mode as the core gameplay.
Starward has achieved a Player Score of 61, placing it in the #9 spot for the best free Space games. Its score was calculated by analyzing a total of 1,938 reviews on Steam. This breaks down to a total of 1,214 positive reviews and 724 negative reviews — making it "Mixed" on Steam.
It can be played and ran on Windows systems. At the moment, it is possible to play Starward on the Steam Deck (though some functionality may be limited).
| Release Date | 4/25/2024 |
| Developer | Game Blender |
| Publisher | 盛天游戏 |
| Steam App Id | 2764370 |
10. Halo Infinite
From one of gaming's most iconic sagas, Halo is bigger than ever. Featuring an expansive open-world campaign and a dynamic free to play multiplayer experience.
Halo Infinite has achieved a Player Score of 69, placing it in the #10 spot for the best free Space games. Its score was calculated by analyzing a total of 176,377 reviews on Steam. This breaks down to a total of 123,140 positive reviews and 53,237 negative reviews — making it "Mixed" on Steam.
It can be played and ran on Windows systems. At the moment, it is possible to play Halo Infinite on the Steam Deck (though some functionality may be limited).
| Release Date | 11/15/2021 |
| Franchise | Xbox Game Studios |
| Developer | 343 Industries |
| Publisher | Xbox Game Studios |
| Steam App Id | 1240440 |
More Free Space Games
Explore even more rankings for the 100 best free Space games available on Steam.
| Image | Name | Actions | ||||
|---|---|---|---|---|---|---|
| 32,391 | 3/25/2013 | 87 | Free | Steam Charts | |
| 16,673 | 10/1/2019 | 79 | Free | Steam Charts | |
| 4,112 | 7/27/2023 | 89 | Free | Steam Charts | |
| 3,023 | 11/3/2021 | 88 | Free | Steam Charts | |
| 3,004 | 12/16/2010 | 73 | Free | Steam Charts | |
| 2,827 | 7/21/2020 | 88 | Free | Steam Charts | |
| 1,138 | 7/18/2024 | 72 | Free | Steam Charts | |
| 1,028 | 12/17/2022 | 89 | Free | Steam Charts | |
| 880 | 4/25/2024 | 61 | Free | Steam Charts | |
| 729 | 11/15/2021 | 69 | Free | Steam Charts | |
 | 613 | 1/31/2012 | 78 | Free | Steam Charts | |
 | 422 | 2/23/2024 | 80 | Free | Steam Charts | |
 | 351 | 11/20/2012 | 80 | Free | Steam Charts | |
 | 228 | 10/3/2024 | 81 | Free | Steam Charts | |
 | 208 | 4/30/2022 | 78 | Free | Steam Charts | |
 | 168 | 12/14/2015 | 58 | Free | Steam Charts | |
 | 150 | 11/17/2024 | 54 | Free | Steam Charts | |
 | 143 | 5/23/2023 | 71 | Free | Steam Charts | |
 | 137 | 7/12/2017 | 64 | Free | Steam Charts | |
 | 101 | 5/8/2025 | 46 | Free | Steam Charts |
Soures & References
Steambase has best-in-class data powered directly by Steam, our data partners, and in-house experts. Player counts 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, May 9). Steam Store. Steam Store.
- Valve Corporation. (2025, May 9). Warframe on Steam. Steam Store.
- Valve Corporation. (2025, May 13). Destiny 2 on Steam. Steam Store.
- Valve Corporation. (2025, May 10). Unnamed Space Idle on Steam. Steam Store.
- Valve Corporation. (2025, May 13). Cell to Singularity - Evolution Never Ends on Steam. Steam Store.
- Valve Corporation. (2025, May 8). EVE Online on Steam. Steam Store.
- Valve Corporation. (2025, May 4). STAR WARS™: The Old Republic™ on Steam. Steam Store.
- Valve Corporation. (2025, May 13). Galaxy Idle Clicker on Steam. Steam Store.
- Valve Corporation. (2025, April 25). Antimatter Dimensions on Steam. Steam Store.
- Valve Corporation. (2025, May 12). Starward on Steam. Steam Store.
- Valve Corporation. (2025, May 12). Halo Infinite on Steam. Steam Store.