Free Space Games on Steam
Steam currently has 7,281 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 3/5/2026.
Looking for more? Explore other lists such as:
- Best space games on Steam
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- Free Steam games
- 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 653,825 reviews on Steam. This breaks down to a total of 572,996 positive reviews and 80,829 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 77, placing it in the #2 spot for the best free Space games. Its score was calculated by analyzing a total of 644,537 reviews on Steam. This breaks down to a total of 499,013 positive reviews and 145,524 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. 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 #3 spot for the best free Space games. Its score was calculated by analyzing a total of 26,101 reviews on Steam. This breaks down to a total of 23,413 positive reviews and 2,688 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 |
4. 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 #4 spot for the best free Space games. Its score was calculated by analyzing a total of 3,962 reviews on Steam. This breaks down to a total of 3,679 positive reviews and 283 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 |
5. EVE Online
Over 20 years of legendary space battles! Explore a massive living universe of danger and opportunity in a challenging and highly rewarding space adventure. Fight, trade, build, and connect with a universe driven and shaped directly by players.
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 38,269 reviews on Steam. This breaks down to a total of 28,155 positive reviews and 10,114 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 72,287 reviews on Steam. This breaks down to a total of 64,742 positive reviews and 7,545 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. Upload Labs
A sci-fi management game where you build and optimize your computer's system from the ground up. Connect and configure interconnected nodes to efficiently download, process, and upload files. Manage your setup, solve system challenges, and become the ultimate system architect
Upload Labs has achieved a Player Score of 89, placing it in the #7 spot for the best free Space games. Its score was calculated by analyzing a total of 6,193 reviews on Steam. This breaks down to a total of 5,702 positive reviews and 491 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 Upload Labs on the Steam Deck (though some functionality may be limited).
| Release Date | 10/3/2025 |
| Developer | EnigmaDev Studios |
| Publisher | EnigmaDev Studios |
| Steam App Id | 3606890 |
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 1,109 reviews on Steam. This breaks down to a total of 831 positive reviews and 278 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).
| Release Date | 8/6/2025 |
| Developer | Soehnle |
| Publishers | |
| Steam App Id | 2962810 |
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 4,223 reviews on Steam. This breaks down to a total of 3,895 positive reviews and 328 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 20,816 reviews on Steam. This breaks down to a total of 16,470 positive reviews and 4,346 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 | Arc Games |
| 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 | ||||
|---|---|---|---|---|---|---|
| 37,129 | 3/25/2013 | 87 | Free | Steam Charts | |
| 4,212 | 10/1/2019 | 77 | Free | Steam Charts | |
| 3,984 | 11/3/2021 | 88 | Free | Steam Charts | |
| 3,134 | 7/27/2023 | 89 | Free | Steam Charts | |
| 2,828 | 12/16/2010 | 73 | Free | Steam Charts | |
| 2,302 | 7/21/2020 | 88 | Free | Steam Charts | |
| 1,778 | 10/3/2025 | 89 | Free | Steam Charts | |
| 874 | 8/6/2025 | 72 | Free | Steam Charts | |
| 867 | 12/17/2022 | 89 | Free | Steam Charts | |
| 842 | 1/31/2012 | 78 | Free | Steam Charts | |
 | 789 | 4/24/2024 | 62 | Free | Steam Charts | |
 | 647 | 11/15/2021 | 69 | Free | Steam Charts | |
 | 268 | 11/20/2012 | 80 | Free | Steam Charts | |
 | 199 | 4/30/2022 | 77 | Free | Steam Charts | |
 | 143 | 1/2/2026 | 62 | Free | Steam Charts | |
 | 139 | 7/12/2017 | 64 | Free | Steam Charts | |
 | 126 | 12/14/2015 | 58 | Free | Steam Charts | |
 | 111 | 5/23/2023 | 71 | Free | Steam Charts | |
 | 105 | 2/27/2019 | 70 | Free | Steam Charts | |
 | 103 | 7/22/2025 | 60 | 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. (2026, March 5). Steam Store. Steam Store.
- Valve Corporation. (2026, March 5). Warframe on Steam. Steam Store.
- Valve Corporation. (2026, March 10). Destiny 2 on Steam. Steam Store.
- Valve Corporation. (2026, March 11). Cell to Singularity - Evolution Never Ends on Steam. Steam Store.
- Valve Corporation. (2026, February 1). Unnamed Space Idle on Steam. Steam Store.
- Valve Corporation. (2026, March 9). EVE Online on Steam. Steam Store.
- Valve Corporation. (2026, March 10). STAR WARS™: The Old Republic™ on Steam. Steam Store.
- Valve Corporation. (2026, March 2). Upload Labs on Steam. Steam Store.
- Valve Corporation. (2026, March 10). Galaxy Idle Clicker on Steam. Steam Store.
- Valve Corporation. (2025, October 20). Antimatter Dimensions on Steam. Steam Store.
- Valve Corporation. (2026, March 10). Star Trek Online on Steam. Steam Store.