Single-player games like Unclaimed World
Below are 9 single-player Steam games similar to Unclaimed World, 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 Unclaimed World page.
Ranked picks
- 1
Oxygen Not Included
Single-player alternative to Unclaimed World — playable solo, no multiplayer required. Shares Indie and Simulation with Unclaimed World.
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.
- 2
Aven Colony
Single-player alternative to Unclaimed World — playable solo, no multiplayer required. Shares Strategy and Indie with Unclaimed World.
Build a new home for humanity in Aven Colony. Discover Aven Prime - an alien planet of deserts, tundras, and wetlands light years from earth. Build your colonies into massive, sprawling cities whilst dealing with the challenges faced when settling on a new world.
- 3
Planetbase
Single-player alternative to Unclaimed World — playable solo, no multiplayer required. Shares Strategy and Indie with Unclaimed World.
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.
- 4
RimWorld
Single-player alternative to Unclaimed World — playable solo, no multiplayer required. Shares Strategy and Indie with Unclaimed World.
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.
- 5
Surviving Mars
Single-player alternative to Unclaimed World — playable solo, no multiplayer required. Shares Strategy and Simulation with Unclaimed World.
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
Dwarf Fortress
Single-player alternative to Unclaimed World — playable solo, no multiplayer required. Shares Strategy and Indie with Unclaimed World.
Build a fortress and try to help your dwarves survive against a deeply generated world. Keep your dwarves happy, grow their community and beware of digging too deeply. The deepest, most intricate simulation of a world that's ever been created.
- 7
Project AURA
Single-player alternative to Unclaimed World — playable solo, no multiplayer required. Shares Strategy and Indie with Unclaimed World.
Project Aura is a micro management game where you lead a Colony of Climate Disaster Survivors. You have been assigned the mission to build an habitat capable of survival in this new unknown world.
- 8
Stardeus
Single-player alternative to Unclaimed World — playable solo, no multiplayer required. Shares Strategy and Indie with Unclaimed World.
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.
- 9
The Sims™ 4
Single-player alternative to Unclaimed World — playable solo, no multiplayer required. Shares Simulation with Unclaimed World.
Play with life and discover the possibilities. Unleash your imagination and create a world of Sims that’s wholly unique. Explore and customize every detail from Sims to homes–and much more.