Single-player games like SPACEUM
Below are 9 single-player Steam games similar to SPACEUM, 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 SPACEUM page.
Ranked picks
- 1
Red Sector
Single-player alternative to SPACEUM — playable solo, no multiplayer required. Shares Action and Indie with SPACEUM.
A sci-fi roguelike about a lone pilot on a forbidden mission through his galaxy. Piece together his story as you scavenge to build your loadout in this procedurally generated space shoot'em-up.
- 2
Alien: Isolation
Single-player alternative to SPACEUM — playable solo, no multiplayer required. Shares Action with SPACEUM.
Discover the true meaning of fear in Alien: Isolation, a survival horror set in an atmosphere of constant dread and mortal danger.
- 3
Raw Metal
Single-player alternative to SPACEUM — playable solo, no multiplayer required. Shares Action and Indie with SPACEUM.
Infiltrate the depths of an exoplanet mining facility to scavenge for gear and challenge a corrupt megacorporation. Utilize gadgets and equipment in high-stakes stealth, and hone your fighting skills in breakneck combat in this stylish stealth-action dungeon crawler.
- 4
Astral Flux
Single-player alternative to SPACEUM — playable solo, no multiplayer required. Shares Action and Indie with SPACEUM.
Astral Flux is an action-platformer with roguelite elements where each run is different. Traverse hostile alien planets, discover dark secrets, and face powerful foes in combat.
- 5
Heat Signature
Single-player alternative to SPACEUM — playable solo, no multiplayer required. Shares Action and Indie with SPACEUM.
Heat Signature is a game from the developers of Gunpoint where you break into spaceships, make terrible mistakes, and think of clever ways out of them. You take a mission, fly to the target ship, sneak inside, and make clever use of your gadgets to distract, ambush and take out the crew.
- 6
Prey
Single-player alternative to SPACEUM — playable solo, no multiplayer required. Shares Action and Adventure with SPACEUM.
In Prey, you awaken aboard Talos I, a space station orbiting the moon in the year 2032. You are the key subject of an experiment meant to alter humanity forever – but things have gone terribly wrong. The space station has been overrun by hostile aliens and you are now being hunted.
- 7
Starfighter Origins Remastered
Single-player alternative to SPACEUM — playable solo, no multiplayer required. Shares Action and Indie with SPACEUM.
Starfighter Origins is an Original 90`s style Indie space combat simulator Based on the CDF Universe. Combining a focus on single player action and a campaign story mode, Starfighter Origins offer fun and diverse gameplay. Designed for keyboard and mouse with full controller support.
- 8
>Mars Taken
Single-player alternative to SPACEUM — playable solo, no multiplayer required. Shares Action and Indie with SPACEUM.
Mars Taken is a TPP Shooter with aliens on Mars. Explore red planet and follow a deep story. This is not a story about aliens...it is a story about life and love.
- 9
GHOSTWINTER
Single-player alternative to SPACEUM — playable solo, no multiplayer required. Shares Action and Indie with SPACEUM.
You are in The Ghost suit. Welcome to The Virtual world - little village in Siberia, Russia. Try to complete Single game hardcore mission - it's not so easy, but the atmosphere... Winter landscape is beautiful and magic! Play Multiplayer DM/TDM/GG Matches and ranking UP! Have fun!