Single-player games like Interstellar Inn
Below are 8 single-player Steam games similar to Interstellar Inn, 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 Interstellar Inn page.
Ranked picks
- 1

Starship Colony
Single-player alternative to Interstellar Inn — playable solo, no multiplayer required. Shares Strategy and Indie with Interstellar Inn.
A deep starship colony sim. Build your starship, manage air, water, food, fuel, energy, temperature and psychology to keep your crew alive across vast distances. Closed-loop system in space. Mining, wiring, plumbing, in-ship factory, (alien?) radio signals & translation, diplomacy, combat, and more.
- 2

Solar Baron
Single-player alternative to Interstellar Inn — playable solo, no multiplayer required. Shares Strategy and Simulation with Interstellar Inn.
As head of an interplanetary corporation, your goal is to extract resources from across the solar system and bring them home faster and cheaper than your competitors. Construct trade depots and colonies. Build rockets and spaceports. Master realistic orbital mechanics and maximize profits.
- 3

Anno 2205™
Single-player alternative to Interstellar Inn — playable solo, no multiplayer required. Shares Strategy and Simulation with Interstellar Inn.
In Anno 2205™, you join humankind‘s next step into the future with the promise to build a better tomorrow. You conquer Earth, establishing rich, bustling cities and grand industrial complexes, but to secure the prosperity of your people, you must travel into space.
- 4

The Final Earth 2
Single-player alternative to Interstellar Inn — playable solo, no multiplayer required. Shares Strategy and Indie with Interstellar Inn.
The Final Earth 2 is a vertical sci-fi city builder. Earth is unlivable, so you decide to create a space colony. Gather resources, then build and research your way to a better future! Grow your city from an exploration ship to a huge metropolis, full of advanced technology. What will you build?
- 5

Space Company Simulator
Single-player alternative to Interstellar Inn — playable solo, no multiplayer required. Shares Strategy and Simulation with Interstellar Inn.
Take the position of a CEO of a space transport company and become a new major player in the industry. Space Company Simulator is a realistic management sim game that will challenge your planning skills as you strive to launch the first manned mission to Mars.
- 6

Surviving Mars
Single-player alternative to Interstellar Inn — playable solo, no multiplayer required. Shares Strategy and Simulation with Interstellar Inn.
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.
- 7

Corsair Cove
Single-player alternative to Interstellar Inn — playable solo, no multiplayer required. Shares Strategy and Simulation with Interstellar Inn.
Build a sprawling pirate haven, raise a fleet to explore the high seas, and take on the Crown to keep the Age of Piracy alive! From ale to flintlock pistols, and from scallywags to swashbucklers, you’ll need to manage complex production chains and govern a rowdy crew to reign supreme over the seas!
- 8

Space Haven
Single-player alternative to Interstellar Inn — playable solo, no multiplayer required. Shares Strategy and Indie with Interstellar Inn.
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.