Tags
Free Space Sim Games
Free-to-play space sim games on Steam. No upfront cost — check each game page for how it makes its money.
- Games tracked
- 13
- On sale now
- 0
- Average price
- —
- Best discount
- —
Showing 1–13 of 13 games
Microsoft Allegiance
Last updated 27 Sept 2026
Free
MatchyGotchy
Last updated 27 Sept 2026
Free
Slipstream: Rogue Space
Last updated 28 Sept 2026
Free
Indie, Simulation, Free To Play, Strategy, Massively Multiplayer
Asteroids ++
Last updated 27 Sept 2026
Free
StarOS
Last updated 27 Sept 2026
Free
Stacks:Space!
Last updated 27 Sept 2026
Free
Hope of Humanity
Last updated 27 Sept 2026
Free
War For Galaxy: New Era
Last updated 27 Sept 2026
Free
Simulation, Free To Play, Strategy, Massively Multiplayer, Early Access
Orbit-X
Last updated 27 Sept 2026
Free
BoboInvasion
Last updated 28 Sept 2026
Free
Slice It Down
Last updated 28 Sept 2026
Free
Void Warfare
Last updated 27 Sept 2026
Free
Space Slaughter
Last updated 27 Sept 2026
Free
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Space Sim · Free FAQ
How many space sim · free games does GeekyAlien track?
GeekyAlien currently tracks 13 space sim · free games in the catalog.
How often are prices updated?
Prices and metadata come from the official Steam Web API and are refreshed on a daily schedule; each game page shows when its data was last updated.
How do I narrow down space sim · free games?
Use the filters on this page to narrow the list by genre, deals, release decade or features like co-op and controller support.
