Single-player games like Orbit Engineer
Below are 8 single-player Steam games similar to Orbit Engineer, 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 Orbit Engineer page.
Ranked picks
- 1
Surviving Mars: Relaunched
Single-player alternative to Orbit Engineer — playable solo, no multiplayer required. Shares Strategy and Simulation with Orbit Engineer.
The award-winning sci-fi city builder is back - remastered, expanded and even more stunning. Colonize Mars and survive the process, from exploration and infrastructure to welcoming colonists and achieving long-term stability. Are you ready? Mars is waiting.
- 2
Stellar Settlers: Space Base Builder
Single-player alternative to Orbit Engineer — playable solo, no multiplayer required. Shares Strategy and Indie with Orbit Engineer.
Stellar Settlers is a chill space base/city builder and colony sim game. With unique vertical and horizontal base-building gameplay, settle on 10 hostile alien planets and build your own thriving colony. Get enough materials to build a physics-based Spaceship and try to escape from disasters.
- 3
Surviving Mars
Single-player alternative to Orbit Engineer — playable solo, no multiplayer required. Shares Strategy and Simulation with Orbit Engineer.
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
Solargene
Single-player alternative to Orbit Engineer — playable solo, no multiplayer required. Shares Strategy and Indie with Orbit Engineer.
Take Command of a Space Corporation in the Sci-Fi Simulator Solargene! Manage personnel, design and develop colonies and orbital stations across the solar system! Mine resources, establish logistics, research cutting-edge technologies, trade, and complete missions
- 5
Mars Horizon
Single-player alternative to Orbit Engineer — playable solo, no multiplayer required. Shares Strategy and Indie with Orbit Engineer.
Lead a major space agency as you guide humanity to Mars in this strategy simulation game. Construct a base, design and build rockets, conduct missions throughout the Solar System, and write your own history of Space exploration. Created with support from the European Space Agency.
- 6
Going Medieval
Single-player alternative to Orbit Engineer — playable solo, no multiplayer required. Shares Strategy and Indie with Orbit Engineer.
Build and manage your own castle settlement in a land reclaimed by wilderness. With detailed management, survival strategy, and a moddable sandbox world, Going Medieval challenges you to build the mightiest colony this side of the apocalypse.
- 7
Pioneers of Pagonia
Single-player alternative to Orbit Engineer — playable solo, no multiplayer required. Shares Strategy and Simulation with Orbit Engineer.
Rebuild hope in a world that was lost in the fog. Lead your Pioneers across the isles of Pagonia, unite scattered tribes, raise thriving communities and discover the history of your people as you reclaim your world in the new story campaign.
- 8
Offworld Trading Company
Single-player alternative to Orbit Engineer — playable solo, no multiplayer required. Shares Strategy and Indie with Orbit Engineer.
Mars has been colonized, and Earth's corporate titans fight to dominate this new market. Competition is fierce in this fast-paced economic RTS from Civilization IV Lead Designer, Soren Johnson.