Single-player games like Horror Vacui
Below are 8 single-player Steam games similar to Horror Vacui, 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 Horror Vacui page.
Ranked picks
- 1
Totally Normal Ramen
Single-player alternative to Horror Vacui — playable solo, no multiplayer required. Shares Simulation with Horror Vacui.
Cook ramen across the galaxy as a rogue robot chef! Explore planets, trigger wild events, battle dangerous customers, and build your ultimate space food truck.
- 2
Project Proxima
Single-player alternative to Horror Vacui — playable solo, no multiplayer required. Shares Adventure with Horror Vacui.
Explore a star system while surviving the harsh conditions of space and whatever lurks in the darkness.
- 3
Star Boss
Single-player alternative to Horror Vacui — playable solo, no multiplayer required. Shares Indie and Simulation with Horror Vacui.
Make robots and spaceships,explore the space,fight with aliens.
- 4
Build In Space
Single-player alternative to Horror Vacui — playable solo, no multiplayer required. Shares Adventure and Simulation with Horror Vacui.
Build In Space is a relaxing tycoon game where you can grow crops, build your base, and raise animals.
- 5
Rebel Galaxy Outlaw
Single-player alternative to Horror Vacui — playable solo, no multiplayer required. Shares Indie and Adventure with Horror Vacui.
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.
- 6
PULSAR: Lost Colony
Single-player alternative to Horror Vacui — playable solo, no multiplayer required. Shares Indie and Adventure with Horror Vacui.
The co-op open-world space sim where everyone has a role! Pilot the ship. Reroute power. Launch nukes. Explore alien planets. Research new talents. Work together to find the Lost Colony! ...or just deliver some biscuits
- 7
Angels In Orbit
Single-player alternative to Horror Vacui — playable solo, no multiplayer required. Shares Indie and Adventure with Horror Vacui.
The year is 2170. An anomaly has ripped through the AIO Station, leaving a lone technician fighting to survive. As the silence of deep space closes in, biblical angels descend, beginning trials of morality, judgment, and the price of human ambition.
- 8
STORMY
Single-player alternative to Horror Vacui — playable solo, no multiplayer required. Shares Indie and Adventure with Horror Vacui.
Turn a sheet of paper into your controller using your webcam, or stick to standard controls. Journey across a vast planetary system to save your lost ally while piloting spaceships, exploring as a robot, fighting, trading, racing, mining, and cultivating life forms.