Single-player games like Celestial Command
Below are 9 single-player Steam games similar to Celestial Command, 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 Celestial Command page.
Ranked picks
- 1

StarMade
Single-player alternative to Celestial Command — playable solo, no multiplayer required. Shares Action and Strategy with Celestial Command.
The ultimate space sandbox. Participate in epic fleet battles, form alliances, strive to dominate entire galaxies and harness the universe’s resources for your industrious empire or the destruction of others. Customise your experience, the universe is yours!
- 2

Wayward Terran Frontier: Zero Falls
Single-player alternative to Celestial Command — playable solo, no multiplayer required. Shares Indie and Simulation with Celestial Command.
2d space combat like no other. From the perspective of a single crew member, explore the fully destructible interior of any ship in a massive living world. Engage in space combat with no hitpoints where you know your enemy is dead when you see them fall out of their ship into the cold dark of space.
- 3

Starship EVO
Single-player alternative to Celestial Command — playable solo, no multiplayer required. Shares Action and Indie with Celestial Command.
Mine and craft your way to orbit, build your own starship and explore a vast, dangerous galaxy alongside your crew. For players who love a meaningful survival progression, a unique and elegant building system, and epic space-opera scale.
- 4

Interstellar Rift
Single-player alternative to Celestial Command — playable solo, no multiplayer required. Shares Action and Indie with Celestial Command.
Interstellar Rift is an open world starship simulator with an emphasis on ship construction and multi-player interaction. Survive in a hostile galaxy with your own custom designed and constructed starship. Invite other players to join your crew or fight them across the galaxy!
- 5

Ostranauts
Single-player alternative to Celestial Command — playable solo, no multiplayer required. Shares Indie and Simulation with Celestial Command.
Navigate your scrappy ship through the boneyard in search of valuable parts in abandoned vessels. Use salvage to upgrade your ship, or sell it for cash to pay down your mounting debt, or restock fuel, air, or food. Fly and role-play aboard your dream spaceship in this hardcore noir space-sim.
- 6

Rebel Galaxy
Single-player alternative to Celestial Command — playable solo, no multiplayer required. Shares Action and Indie with Celestial Command.
Rebel Galaxy is a swashbuckling space adventure, with action-packed combat, exploration, discovery, trade, and “negotiation” with the outlandish denizens at the edge of the known universe.
- 7

The Last Starship
Single-player alternative to Celestial Command — playable solo, no multiplayer required. Shares Strategy and Indie with Celestial Command.
The Last Starship is a 2D space construction game where you design and upgrade your starship. Choose your path: pirate hunter, miner, engineer, spacebus driver, and more, whilst exploring vibrant star systems. Enjoy a growing sandbox world, with regular free updates. Your cosmic adventure awaits!
- 8

Space Pirates And Zombies 2
Single-player alternative to Celestial Command — playable solo, no multiplayer required. Shares Action and Strategy with Celestial Command.
Design and then improve the ultimate mothership. Explore a persistent living galaxy populated by 200 unique captains that can do everything you can do. Survive the zombie infection and then fight them back. Make allies and start your own faction. Build your empire. Also includes Sandbox Mode.
- 9

Kinetic Void
Single-player alternative to Celestial Command — playable solo, no multiplayer required. Shares Action and Indie with Celestial Command.
Kinetic Void is a 3D space adventure with a focus on customization and enjoyable space simulation. The shipyard allows players to construct their ship piece by piece. Ships can be as simplistic as a cockpit, a hull, a engine and a gun, or as complex as a player wants.