Free games like Terraformer Expedition to Mars
Below are 8 free-to-play Steam games similar to Terraformer Expedition to 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 Terraformer Expedition to Mars page.
Ranked picks
- 1
Quasimorph: End of Dream
Free-to-play alternative to Terraformer Expedition to Mars — no purchase or trial window. Shares Indie and Simulation with Terraformer Expedition to Mars.
Quasimorph: End of Dream is the first chapter of the extraction turn-based RPG Quasimorph. Confront your fears in brutal shootouts with PMC -fighters and demons and try to survive to complete your mission and bring the gear back to your spaceship!
- 2
Farlanders: Prologue
Free-to-play alternative to Terraformer Expedition to Mars — no purchase or trial window. Shares Indie and Simulation with Terraformer Expedition to Mars.
Prepare for your journey to Mars by building and managing a colony within the safety of Earth’s atmosphere. Hone your abilities to create a thriving community, terraform the land to suit your needs, and prove your capability for a larger mission. Get ready to launch in this prologue to Farlanders.
- 3
OESE
Free-to-play alternative to Terraformer Expedition to Mars — no purchase or trial window. Shares Indie and Simulation with Terraformer Expedition to Mars.
OESE - The space survival game about decisions and consequences.
- 4
Bow to Blood: Last Captain Standing
Free-to-play alternative to Terraformer Expedition to Mars — no purchase or trial window. Shares Indie with Terraformer Expedition to Mars.
Become a Captain! Fly your ship and command your crew as you compete to become Champion in a winner-takes-all reality show. Build relationships and plot betrayals to avoid getting voted off the season and become the last captain standing. Optional VR support.
- 5
Destination Sol
Free-to-play alternative to Terraformer Expedition to Mars — no purchase or trial window. Shares Indie with Terraformer Expedition to Mars.
Pilot your ship in the seamless open world made of space, planets, and more. Find new ships and equipment, find allies and beat all the enemies in this open source space shooter!
- 6
Occupy Mars: Prologue (2020)
Free-to-play alternative to Terraformer Expedition to Mars — no purchase or trial window. Shares Indie and Simulation with Terraformer Expedition to Mars.
Occupy Mars: Prologue is an old introduction to the world of Occupy Mars in which you have to use your brain in order to survive. The Prologue tells a separate story in a closed location and shows a sneak-peek of the full game mechanics.
- 7
Starship Theory
Free-to-play alternative to Terraformer Expedition to Mars — no purchase or trial window. Shares Indie and Simulation with Terraformer Expedition to Mars.
Starship Theory is a ship building survival game. Mine and trade to gather resources. Plan and construct new upgrades. Train and manage crew. Fight to survive.
- 8
Blocksworld
Free-to-play alternative to Terraformer Expedition to Mars — no purchase or trial window. Shares Indie and Simulation with Terraformer Expedition to Mars.
Build anything from characters that run around to mighty machines that drive, blast, crawl, and fly! Then play with your creations in action-packed games, share what you’ve built with your friends, and explore creations made by people all over the world!