Free games like Surviving Mars
Below are 8 free-to-play Steam games similar to Surviving Mars, 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 Surviving Mars page.
Ranked picks
- 1

Ultimate Custom Night
Free-to-play alternative to Surviving Mars — no purchase or trial window.
Welcome to the ultimate FNAF mashup, featuring 50 selectable characters and custom difficulties!
- 2

Magic Archery
Free-to-play alternative to Surviving Mars — no purchase or trial window. Shares Simulation with Surviving Mars.
Train a commoner to become the greatest archer in this short incremental game! Increase your stats, gather wealth from quests, buy upgrades, and infuse your arrows with magic.
- 3

The Lab
Free-to-play alternative to Surviving Mars — 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!
- 4

Landfall Archives
Free-to-play alternative to Surviving Mars — no purchase or trial window. Shares Strategy with Surviving Mars.
Break into the Landfall Archives to steal and play previously unreleased games, demos, interactive slide shows, and even an unreleased version of Totally Accurate Battle Simulator from 2017!
- 5

SuchArt: Creative Space
Free-to-play alternative to Surviving Mars — no purchase or trial window. Shares Simulation with Surviving Mars.
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!
- 6

The Riftbreaker: Prologue
Free-to-play alternative to Surviving Mars — no purchase or trial window. Shares Strategy with Surviving Mars.
The Riftbreaker: Prologue allows you to experience the events taking place before the story campaign of the main game. Explore an entirely new world. Gather resources. Build up a base. Defend yourself from thousands of alien creatures.
- 7

Jigsaw Puzzle Dreams
Free-to-play alternative to Surviving Mars — no purchase or trial window.
Beautiful Multiplayer Jigsaw Puzzle game where you can design the room you play in!
- 8

The Last Sovereign
Free-to-play alternative to Surviving Mars — no purchase or trial window. Shares Strategy with Surviving Mars.
Explore a world torn between armies of lust and purity in which everything is more complex than it seems, deciding the fate of nations through might, politics, and finance. Every decision matters in an intricate saga that tracks thousands of variables.