Free Space Games on Steam
Steam currently has 5,833 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 2/5/2025.
Looking for more? Explore other lists such as:
- Best space games on Steam
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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 607,943 reviews on Steam. This breaks down to a total of 531,631 positive reviews and 76,312 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 618,939 reviews on Steam. This breaks down to a total of 493,676 positive reviews and 125,263 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 2,402 reviews on Steam. This breaks down to a total of 2,237 positive reviews and 165 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 22,713 reviews on Steam. This breaks down to a total of 20,449 positive reviews and 2,264 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 35,637 reviews on Steam. This breaks down to a total of 26,301 positive reviews and 9,336 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 65,514 reviews on Steam. This breaks down to a total of 58,706 positive reviews and 6,808 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. Alpha League
Alpha League is a free-to-play, hero based Auto Chess. In Alpha League, simply pick and build your favorite hero in a Roguelike fashion with 12 different combat genres, and then battle the other 7 Bots or Players to be the winner.
Alpha League has achieved a Player Score of 80, placing it in the #7 spot for the best free Space games. Its score was calculated by analyzing a total of 1,205 reviews on Steam. This breaks down to a total of 1,017 positive reviews and 188 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 Alpha League on the Steam Deck (though some functionality may be limited).
| Release Date | 2/23/2024 |
| Developer | Beaveroid Entertainment |
| Publisher | Beaveroid Entertainment |
| Steam App Id | 2684500 |
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 3,407 reviews on Steam. This breaks down to a total of 3,143 positive reviews and 264 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. 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 73, placing it in the #9 spot for the best free Space games. Its score was calculated by analyzing a total of 547 reviews on Steam. This breaks down to a total of 423 positive reviews and 124 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).
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 19,870 reviews on Steam. This breaks down to a total of 15,698 positive reviews and 4,172 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 Star Trek Online on the Steam Deck.
| 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 | ||||
|---|---|---|---|---|---|---|
| 56,830 | 3/25/2013 | 87 | Free | Steam Charts | |
| 38,201 | 10/1/2019 | 79 | Free | Steam Charts | |
| 5,202 | 7/27/2023 | 89 | Free | Steam Charts | |
| 4,139 | 11/3/2021 | 88 | Free | Steam Charts | |
| 3,201 | 12/16/2010 | 73 | Free | Steam Charts | |
| 2,711 | 7/21/2020 | 88 | Free | Steam Charts | |
| 1,924 | 2/23/2024 | 80 | Free | Steam Charts | |
| 1,551 | 12/17/2022 | 89 | Free | Steam Charts | |
| 1,458 | 7/18/2024 | 73 | Free | Steam Charts | |
| 1,266 | 1/31/2012 | 78 | Free | Steam Charts | |
 | 784 | 11/15/2021 | 70 | Free | Steam Charts | |
 | 602 | 11/20/2012 | 80 | Free | Steam Charts | |
 | 389 | 4/30/2022 | 78 | Free | Steam Charts | |
 | 364 | 11/17/2024 | 57 | Free | Steam Charts | |
 | 253 | 10/3/2024 | 81 | Free | Steam Charts | |
 | 197 | 5/23/2023 | 71 | Free | Steam Charts | |
 | 191 | 12/14/2015 | 58 | Free | Steam Charts | |
 | 162 | 7/12/2017 | 64 | Free | Steam Charts | |
 | 154 | 2/27/2019 | 70 | Free | Steam Charts | |
 | 151 | 4/24/2024 | 65 | 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, February 5). Steam Store. Steam Store.
- Valve Corporation. (2025, February 5). Warframe on Steam. Steam Store.
- Valve Corporation. (2025, February 12). Destiny 2 on Steam. Steam Store.
- Valve Corporation. (2025, February 11). Unnamed Space Idle on Steam. Steam Store.
- Valve Corporation. (2025, February 12). Cell to Singularity - Evolution Never Ends on Steam. Steam Store.
- Valve Corporation. (2025, February 11). EVE Online on Steam. Steam Store.
- Valve Corporation. (2025, February 2). STAR WARS™: The Old Republic™ on Steam. Steam Store.
- Valve Corporation. (2025, January 29). Alpha League on Steam. Steam Store.
- Valve Corporation. (2025, February 5). Antimatter Dimensions on Steam. Steam Store.
- Valve Corporation. (2025, February 11). Galaxy Idle Clicker on Steam. Steam Store.
- Valve Corporation. (2025, February 11). Star Trek Online on Steam. Steam Store.