Single-player games like Mars Colony:Challenger
Below are 11 single-player Steam games similar to Mars Colony:Challenger, ranked by player overlap. Every pick carries Steam's Single-player category, so multiplayer-only titles or always-online games don't sneak in. imho.run pulls the category data from Steam directly — Single-player here matches what the store labels.
Want the full alternatives list (paid + free + Steam Deck + cheaper picks)? See the parent games like Mars Colony:Challenger page.
Ranked picks
- 1
Take On Mars
Single-player alternative to Mars Colony:Challenger — playable solo, no multiplayer required. Shares Simulation with Mars Colony:Challenger.
Take On Mars places you right in the middle of mankind’s most exciting undertaking. Start out in the seat of a rover operator, finish as the first human to have ever set foot on the Red Planet.
- 2
Sol 0: Mars Colonization
Single-player alternative to Mars Colony:Challenger — playable solo, no multiplayer required. Shares Indie and Simulation with Mars Colony:Challenger.
Sol 0 is a real time strategy game where you establish the first Martian colony. From the first human footprints on Martian soil to a thriving and self-sustaining colony, Sol 0 imagines a near future using technology that could be available within the next few decades.
- 3
Surviving Mars
Single-player alternative to Mars Colony:Challenger — playable solo, no multiplayer required. Shares Simulation with Mars Colony:Challenger.
There will be challenges to overcome. Execute your strategy and improve your colony’s chances of survival while unlocking the mysteries of this alien world. Are you ready? Mars is waiting for you.
- 4
Dead in Antares
Single-player alternative to Mars Colony:Challenger — playable solo, no multiplayer required. Shares Indie and Adventure with Mars Colony:Challenger.
Dead in Antares is a turn-based survival management game with RPG elements, set on an alien planet. Lead a crew of survivors sent on a mission to save humanity. Manage their needs, strengthen their teamwork, and explore this mysterious world to find a way back home.
- 5
Oxygen Not Included
Single-player alternative to Mars Colony:Challenger — playable solo, no multiplayer required. Shares Indie and Simulation with Mars Colony:Challenger.
Oxygen Not Included is a space-colony simulation game. Deep inside an alien space rock your industrious crew will need to master science, overcome strange new lifeforms, and harness incredible space tech to survive, and possibly, thrive.
- 6
PULSAR: Lost Colony
Single-player alternative to Mars Colony:Challenger — playable solo, no multiplayer required. Shares Indie and Adventure with Mars Colony:Challenger.
The co-op open-world space sim where everyone has a role! Pilot the ship. Reroute power. Launch nukes. Explore alien planets. Research new talents. Work together to find the Lost Colony! ...or just deliver some biscuits
- 7
Occupy Mars: The Game
Single-player alternative to Mars Colony:Challenger — playable solo, no multiplayer required. Shares Indie and Adventure with Mars Colony:Challenger.
Survive and colonize Mars in a highly technical, open-world sandbox game. Build and upgrade your base, discover new regions, conduct mining operations, retrieve water, generate oxygen, grow crops, and fix broken parts.
- 8
Space Haven
Single-player alternative to Mars Colony:Challenger — playable solo, no multiplayer required. Shares Indie and Simulation with Mars Colony:Challenger.
Embark on a space voyage with your ragtag crew of civilians in search of a new home. Build spaceships tile by tile, create optimal gas conditions, manage the needs and moods of their crew, encounter other space-faring groups, and explore the universe in this spaceship colony simulation.
- 9
Moonbase Alpha
Single-player alternative to Mars Colony:Challenger — playable solo, no multiplayer required. Shares Adventure and Simulation with Mars Colony:Challenger.
NASA has once again landed on the lunar surface with the goal of colonization, research, and further exploration. Shortly after the return to the Moon, NASA has established a small outpost on the south pole of the moon called Moonbase Alpha.
- 10
Mars Colony: Frontier
Single-player alternative to Mars Colony:Challenger — playable solo, no multiplayer required. Shares Indie and Adventure with Mars Colony:Challenger.
In Mars Colony: Frontier you can learn the hard way what life would be like if you were stranded on the red planet. In this open-world simulator, you assume the role of an astronaut who has been sent on a mission to Mars only to have turmoil on Earth extend your stay indefinitely.
- 11
ScudBuster
Single-player alternative to Mars Colony:Challenger — playable solo, no multiplayer required.
Missile Command style shooter game with Battleship strategy elements