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

DarkSpase
Single-player alternative to OUTER WATCH — playable solo, no multiplayer required. Shares Indie and Simulation with OUTER WATCH.
Galaga meets Tie Fighter meets Elite Dangerous. A sci-fi starfighter combat sim with NASA-accurate Keplerian orbits. Voyage across the Solar System with real-time FTL. Engage Dregg swarms in dynamic PvE encounters. Outmaneuver invaders by pushing Newtonian physics to the limit at 150 m/s.
- 2

Anomaly Operation
Single-player alternative to OUTER WATCH — playable solo, no multiplayer required. Shares Indie and Simulation with OUTER WATCH.
Anomaly Operation is a sci-fi horror observation game. Trapped in the security room, you must monitor a derelict ship via CCTV. Report anomalies and avoid lethal threats. Survive until 03:00 AM.
- 3

Starship Fighters: Space Combat Simulator
Single-player alternative to OUTER WATCH — playable solo, no multiplayer required. Shares Indie and Simulation with OUTER WATCH.
Pilot your starship in Starship Fighters, a realistic space combat simulator. Engage in intense battles, explore vast galaxies, and unleash destruction with an arsenal of powerful weapons in a universe teeming with enemies!
- 4

Starship Simulator
Single-player alternative to OUTER WATCH — playable solo, no multiplayer required. Shares Simulation with OUTER WATCH.
Explore a scientifically accurate Milky Way galaxy and discover distant uncharted worlds, while having unrestricted access to every deck of your Magellan Class deep space exploration vessel. Interact with numerous fully simulated ship systems, or simply relax in the bar and watch the stars drift by.
- 5

Cradle-18
Single-player alternative to OUTER WATCH — playable solo, no multiplayer required. Shares Indie with OUTER WATCH.
A sci-fi immersive sim with horror elements set on an abandoned orbital station. Manage life support systems, conserve resources, and survive in an atmosphere of mounting pressure where the environment is fully interactive.
- 6

In The Backrooms
Single-player alternative to OUTER WATCH — playable solo, no multiplayer required. Shares Indie and Simulation with OUTER WATCH.
"God save you if you hear something wandering around nearby, because it sure as hell has heard you.."
- 7

Space Docker VR
Single-player alternative to OUTER WATCH — playable solo, no multiplayer required. Shares Indie and Simulation with OUTER WATCH.
A hardcore flight simulator for VR! Get in the cockpit, pilot a ship, and navigate hazardous environments on a journey to become an expert docker!
- 8

Star Trucker
Single-player alternative to OUTER WATCH — playable solo, no multiplayer required. Shares Simulation with OUTER WATCH.
Haul cargo, trade salvage and keep your space suit close as you search for fame and fortune among the stars in a game that puts an interstellar twist on the truck sim genre.