Free Space Games on Steam
Steam currently has 6,218 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 5/30/2025.
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 619,915 reviews on Steam. This breaks down to a total of 542,089 positive reviews and 77,826 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 625,422 reviews on Steam. This breaks down to a total of 497,710 positive reviews and 127,712 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 2,879 reviews on Steam. This breaks down to a total of 2,676 positive reviews and 203 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. 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 #4 spot for the best free Space games. Its score was calculated by analyzing a total of 36,355 reviews on Steam. This breaks down to a total of 26,784 positive reviews and 9,571 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).
5. 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 #5 spot for the best free Space games. Its score was calculated by analyzing a total of 23,675 reviews on Steam. This breaks down to a total of 21,269 positive reviews and 2,406 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 |
6. 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 62, placing it in the #6 spot for the best free Space games. Its score was calculated by analyzing a total of 2,030 reviews on Steam. This breaks down to a total of 1,278 positive reviews and 752 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 |
7. 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 #7 spot for the best free Space games. Its score was calculated by analyzing a total of 67,872 reviews on Steam. This breaks down to a total of 60,789 positive reviews and 7,083 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 |
8. 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 #8 spot for the best free Space games. Its score was calculated by analyzing a total of 668 reviews on Steam. This breaks down to a total of 504 positive reviews and 164 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).
9. 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 #9 spot for the best free Space games. Its score was calculated by analyzing a total of 3,682 reviews on Steam. This breaks down to a total of 3,401 positive reviews and 281 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 |
10. Star Trek Online
In Star Trek Online, the Star Trek universe appears for the first time on a truly massive scale. Players take the captain's chair as they command their own starship and crew. Explore strange new worlds, seek out new life and new civilizations, and boldly go where no one has gone before.
Star Trek Online has achieved a Player Score of 78, placing it in the #10 spot for the best free Space games. Its score was calculated by analyzing a total of 20,142 reviews on Steam. This breaks down to a total of 15,936 positive reviews and 4,206 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 Star Trek Online on the Steam Deck (though some functionality may be limited).
| Release Date | 1/31/2012 |
| Franchise | Perfect World Entertainment |
| Developer | Cryptic Studios |
| Publishers | |
| Steam App Id | 9900 |
More Free Space Games
Explore even more rankings for the 100 best free Space games available on Steam.
| Image | Name | Actions | ||||
|---|---|---|---|---|---|---|
| 44,091 | 3/25/2013 | 87 | Free | Steam Charts | |
| 20,584 | 10/1/2019 | 79 | Free | Steam Charts | |
| 4,375 | 7/27/2023 | 89 | Free | Steam Charts | |
| 4,172 | 12/16/2010 | 73 | Free | Steam Charts | |
| 3,092 | 11/3/2021 | 88 | Free | Steam Charts | |
| 1,954 | 4/25/2024 | 62 | Free | Steam Charts | |
| 1,221 | 7/21/2020 | 88 | Free | Steam Charts | |
| 1,181 | 7/18/2024 | 72 | Free | Steam Charts | |
| 1,140 | 12/17/2022 | 89 | Free | Steam Charts | |
| 839 | 1/31/2012 | 78 | Free | Steam Charts | |
 | 738 | 11/15/2021 | 69 | Free | Steam Charts | |
 | 553 | 11/20/2012 | 80 | Free | Steam Charts | |
 | 214 | 4/30/2022 | 78 | Free | Steam Charts | |
 | 181 | 10/3/2024 | 82 | Free | Steam Charts | |
 | 179 | 5/23/2023 | 71 | Free | Steam Charts | |
 | 175 | 7/12/2017 | 64 | Free | Steam Charts | |
 | 171 | 12/14/2015 | 58 | Free | Steam Charts | |
 | 141 | 11/17/2024 | 54 | Free | Steam Charts | |
 | 118 | 6/24/2024 | 88 | Free | Steam Charts | |
 | 106 | 10/22/2024 | 50 | 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 30). Steam Store. Steam Store.
- Valve Corporation. (2025, May 30). Warframe on Steam. Steam Store.
- Valve Corporation. (2025, June 4). Destiny 2 on Steam. Steam Store.
- Valve Corporation. (2025, June 4). Unnamed Space Idle on Steam. Steam Store.
- Valve Corporation. (2025, June 3). EVE Online on Steam. Steam Store.
- Valve Corporation. (2025, June 4). Cell to Singularity - Evolution Never Ends on Steam. Steam Store.
- Valve Corporation. (2025, June 3). Starward on Steam. Steam Store.
- Valve Corporation. (2025, June 4). STAR WARS™: The Old Republic™ on Steam. Steam Store.
- Valve Corporation. (2025, June 4). Galaxy Idle Clicker on Steam. Steam Store.
- Valve Corporation. (2025, May 14). Antimatter Dimensions on Steam. Steam Store.
- Valve Corporation. (2025, May 15). Star Trek Online on Steam. Steam Store.