Free games like Mars Exodus
Below are 8 free-to-play Steam games similar to Mars Exodus, ranked by player overlap and content similarity. No purchase or Steam login required to view the list. Every pick is a full free-to-play title — not a demo, trial, or time-limited giveaway. imho.run's catalogue refreshes daily, so newly free or newly popular titles surface here without manual editing.
Want the full alternatives list (paid + free + Steam Deck + cheaper picks)? See the parent games like Mars Exodus page.
Ranked picks
- 1
Ultimate Custom Night
Free-to-play alternative to Mars Exodus — no purchase or trial window. Shares Action and Indie with Mars Exodus.
Welcome to the ultimate FNAF mashup, featuring 50 selectable characters and custom difficulties!
- 2
STRAFTAT
Free-to-play alternative to Mars Exodus — no purchase or trial window. Shares Action with Mars Exodus.
STRAFTAT is a 1v1/2v2 ONLINE first person SHOOTER with quick rounds in over 350 MAPS ; Including all WEAPONS, proximity chat and 4 players FFA.
- 3
Counter-Strike:Global Offensive
Free-to-play alternative to Mars Exodus — no purchase or trial window. Shares Action with Mars Exodus.
Counter-Strike:Global Offensive (CS:GO) expands upon the team-based action gameplay that it pioneered when it was launched over 2 decades ago. CS:GO features new maps, characters, weapons, and game modes, and delivers updated versions of the classic CS content (de_dust2, etc.).
- 4
Iron Snout
Free-to-play alternative to Mars Exodus — no purchase or trial window. Shares Action and Indie with Mars Exodus.
Iron Snout is a fast, colorful and brutal fighting game in which you will be helping a piglet fight for its life against hordes of wolves.
- 5
The Lab
Free-to-play alternative to Mars Exodus — no purchase or trial window.
Welcome to The Lab, a compilation of Valve’s room-scale VR experiments set in a pocket universe within Aperture Science. Fix a robot, defend a castle, adopt a mechanical dog, and more. Still not sold? It’s free!
- 6
Control, I'm Not Coming Back
Free-to-play alternative to Mars Exodus — no purchase or trial window. Shares Indie with Mars Exodus.
Control, I'm Not Coming Back is a short and emotional narrative game about a lost astronaut searching for a reason to keep going forward while facing the emptiness of space. Inspired by the Hopecore aesthetic, it’s a story about positivism, friendship and our human connection with Voyager 1.
- 7
No Results Found
Free-to-play alternative to Mars Exodus — no purchase or trial window. Shares Indie and Simulation with Mars Exodus.
Search, dig deeper, and search again. Can you reach the end of the truth?
- 8
SuchArt: Creative Space
Free-to-play alternative to Mars Exodus — no purchase or trial window. Shares Action and Indie with Mars Exodus.
Paint on any surfaces with numerous tools in Creative Space — a free sandbox version of SuchArt: Genius Artist Simulator. Create masterpieces, complete commissions, and decorate your studio in the most advanced artist sim!