Single-player games like Star Boss
Below are 8 single-player Steam games similar to Star Boss, 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 Star Boss page.
Ranked picks
- 1
Deep Space Treasure
Single-player alternative to Star Boss — playable solo, no multiplayer required. Shares Simulation with Star Boss.
This is a 2D side-scrolling sandbox survival game built on pure procedural generation and mining. There is no map and no hand-holding. Just your rocket, your drill, and an infinite universe. Mine resources, craft gear, and build bases while facing endless roguelike survival challenges.
- 2
Starbase Gunship
Single-player alternative to Star Boss — playable solo, no multiplayer required. Shares Simulation with Star Boss.
Starbase Gunship places you in the seat of a weapons officer on a state-of-the-art Gunship as you defend a remote outpost from an Alien invasion fleet. With access to laser cannons, missiles, miniguns and nuclear warheads, you are the last line of defense between humanity and the alien invaders.
- 3
Astrominer
Single-player alternative to Star Boss — playable solo, no multiplayer required. Shares Indie and Casual with Star Boss.
Embark on an epic space adventure in AstroMiner, where you must build a base, overcome challenges, and construct a space ship to return home from the asteroid belt.
- 4
Stacks:Space!
Single-player alternative to Star Boss — playable solo, no multiplayer required. Shares Indie and Simulation with Star Boss.
Stacks:Space is a space-themed base builder card game with rogue-like elements. Buy booster packs to get new cards, discover craft recipes by stacking cards together, create structures, manufacture drones and droids, defend your base from enemies, visit distant planets, and more!
- 5
D.R.I.F.T.
Single-player alternative to Star Boss — playable solo, no multiplayer required. Shares Indie and Simulation with Star Boss.
A slow, system-driven space sim about contracts, reputation, and survival through careful decision-making, not combat or heroics.
- 6
Startenders: Intergalactic Bartending
Single-player alternative to Star Boss — playable solo, no multiplayer required. Shares Indie and Simulation with Star Boss.
Prepare for your unexpected enrollment into the Startenders Academy. Your goal is to create bizarre beverages for colourful customers in the hope that no one notices you haven’t the slightest clue what’s going on.
- 7
IFO
Single-player alternative to Star Boss — playable solo, no multiplayer required. Shares Indie and Simulation with Star Boss.
A spaceship simulator for aliens, an ever-changing rule discovery puzzle for humans.
- 8
Rebel Galaxy Outlaw
Single-player alternative to Star Boss — playable solo, no multiplayer required. Shares Indie and Simulation with Star Boss.
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.