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

Celestial Routes
Single-player alternative to Astro Traveler — playable solo, no multiplayer required. Shares Action and Indie with Astro Traveler.
A third-person space survival game where seamless planet landings meet debt, fuel costs, fines, taxes, base ownership, and rebellion.
- 2

Space Travellers
Single-player alternative to Astro Traveler — playable solo, no multiplayer required. Shares Action and Indie with Astro Traveler.
Space Travellers is a unique open-world sandbox space simulator set in the year 2343. Travel the galaxy, trade, explore unexplored worlds, fight, build bases and factories, forge alliances and experience new adventures!
- 3

Galactic Command Echo Squad SE
Single-player alternative to Astro Traveler — playable solo, no multiplayer required. Shares Action and Indie with Astro Traveler.
Galactic Command Echo Squad SE is a high-end and very challenging space/planetary combat game. It offers a thrilling campaign, instant action combat sessions as well as a sandbox mode allowing you to explore the game's universe while battling hostile Insurgent forces among others.
- 4

Starship EVO
Single-player alternative to Astro Traveler — playable solo, no multiplayer required. Shares Action and Indie with Astro Traveler.
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.
- 5

Terminal Velocity™: Boosted Edition
Single-player alternative to Astro Traveler — playable solo, no multiplayer required. Shares Action and Adventure with Astro Traveler.
In the far future, armadas from surrounding systems have suddenly waged war on Earth. You are a pilot from the Ares Squadron, flying the fastest, most dangerous crafts ever made. You're outgunned, outmanned, and strapped into a flying coffin.
- 6

Elite Dangerous
Single-player alternative to Astro Traveler — playable solo, no multiplayer required. Shares Action and Adventure with Astro Traveler.
Take control of your own starship and blaze your trail in an ever-changing galaxy. Master the arts of combat, mining and trade or venture out into the unknown across a 1:1 scale universe.
- 7

Rebel Galaxy Outlaw
Single-player alternative to Astro Traveler — playable solo, no multiplayer required. Shares Action and Indie with Astro Traveler.
Out of cash, out of luck, out on the fringe. Juno Markev has a killer to tail, a debt to pay, and more trouble headed her way. Rebel Galaxy Outlaw takes place in a greasy, blue-collar world of outlaws, truckers, cops and thieves.
- 8

Jitter
Single-player alternative to Astro Traveler — playable solo, no multiplayer required. Shares Action and Indie with Astro Traveler.
A sci-fi exploration & survival game where you take on the role of a spaceship’s AI. Explore, fight, and survive across a mining colony in the Main Asteroid Belt. Rebuild your ship. Rescue your crew. Reveal the truth behind your mission.