Free to Play Mars Games on Steam
Check out this fantastic list of free-to-play mars games you can enjoy on Steam right now, updated on July 31st 2025. Looking for even more free titles? Explore the complete list of the best free to play mars games.
Lists & Categories
1. Project Eagle: A 3D Interactive Mars Base
An interactive art demo that showcases what a future base on Mars could look like. Project Eagle isn't a game - but an exploration of mankind's possible future. Project Eagle: A 3D Interactive Mars Base is a game developed and published by . Released on November 27th 2018 has received 540 reviews of which 408 were positive and 132 were negative resulting in a rating of 7.2 out of 10. The game currently holds the #1 spot among the most played mars games.
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