Single-player games like Starmancer
Below are 10 single-player Steam games similar to Starmancer, 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 Starmancer page.
Ranked picks
- 1
Space Haven
Single-player alternative to Starmancer — playable solo, no multiplayer required. Shares Strategy and Indie with Starmancer.
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.
- 2
The Crust
Single-player alternative to Starmancer — playable solo, no multiplayer required. Shares Strategy and Simulation with Starmancer.
Automate a lunar base as you become the savior of humanity exploring the future on the moon. Mine, craft, research, and trade resources with Earth in this gripping narrative basebuilder.
- 3
Stardeus
Single-player alternative to Starmancer — playable solo, no multiplayer required. Shares Strategy and Indie with Starmancer.
Stardeus is a deep colony sim set on a broken starship manned by drones and hibernating human survivors. As the AI, have your drones repair your ship, save your crew and travel the stars in this beautiful simulation.
- 4
Oxygen Not Included
Single-player alternative to Starmancer — playable solo, no multiplayer required. Shares Indie and Simulation with Starmancer.
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.
- 5
Surviving Mars
Single-player alternative to Starmancer — playable solo, no multiplayer required. Shares Strategy and Simulation with Starmancer.
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.
- 6
Planetbase
Single-player alternative to Starmancer — playable solo, no multiplayer required. Shares Strategy and Indie with Starmancer.
Guide a group of space settlers trying to establish a base on a remote planet. Grow food, collect energy, mine resources, survive disasters and build a self-sufficient colony in a harsh and unforgiving environment.
- 7
WorldBox - God Simulator
Single-player alternative to Starmancer — playable solo, no multiplayer required. Shares Indie and Simulation with Starmancer.
WorldBox is the ULTIMATE god simulator and sandbox game. A petri dish for your fantasy civilizations. Create your own world or destroy it using many powers. Watch civilizations grow, form kingdoms, colonize new lands, sail to far continents, wars to ignite, empires to fall and towns to burn!
- 8
RimWorld
Single-player alternative to Starmancer — playable solo, no multiplayer required. Shares Strategy and Indie with Starmancer.
A sci-fi colony sim driven by an intelligent AI storyteller. Generates stories by simulating psychology, ecology, gunplay, melee combat, climate, biomes, diplomacy, interpersonal relationships, art, medicine, trade, and more.
- 9
Spacebase DF-9
Single-player alternative to Starmancer — playable solo, no multiplayer required. Shares Strategy and Indie with Starmancer.
In Spacebase DF-9, you'll build a home among the stars for a motley population of humans and aliens as they go about their daily lives. Mine asteroids, discover derelicts, and deal with the tribulations of galactic resettlement in Earth's distant future.
- 10
Starbound
Single-player alternative to Starmancer — playable solo, no multiplayer required. Shares Indie with Starmancer.
You’ve fled your home, only to find yourself lost in space with a damaged ship. Your only option is to beam down to the planet below, repair your ship and set off to explore the universe...