Single-player games like Out A Space
Below are 8 single-player Steam games similar to Out A Space, 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 Out A Space page.
Ranked picks
- 1
Signal Zero
Single-player alternative to Out A Space — playable solo, no multiplayer required. Shares Action with Out A Space.
A sci-fi roguelike shooter where aim and movement are unified into one mouse. Pilot a Simuler, command your ship, deploy escorts, and tear through colossal bosses. Easy to grasp, ruthless under pressure.
- 2
Hyper Sentinel Fusion
Single-player alternative to Out A Space — playable solo, no multiplayer required. Shares Action with Out A Space.
Pilot an agile starfighter to tear down alien megastructures under fire, then pull off a high-stakes heist from within before everything explodes. When you die time rewinds, sending you back to Moonbase Alpha - your hub for reinvention. Spend your bounty on epic upgrades, ready for the next run.
- 3
Robits: Quantum Descent
Single-player alternative to Out A Space — playable solo, no multiplayer required. Shares Action with Out A Space.
Build your drone. Ricochet. Dominate. Top-down roguelite shooter where your drone bounces through chaotic arenas packed with interdimensional hordes. Stack weapons, survive the onslaught.
- 4
Prism Drift
Single-player alternative to Out A Space — playable solo, no multiplayer required. Shares Action with Out A Space.
Take control of a lone pilot in a hostile galaxy. In this incremental roguelike, every death is a lesson and every scrap of loot is progress. Battle through relentless waves of enemies, level up your skills, and return to base to turn your scavenged parts into ship upgrades.
- 5
Until somewhere
Single-player alternative to Out A Space — playable solo, no multiplayer required. Shares Action with Out A Space.
WARNING! This game is harder than it looks – you’ll need to be a real go-getter. The aim is to build your shuttle and upgrade it so you can venture into the unknown depths of interstellar space. With only Lina, your faithful companion, by your side, will you have enough patience?
- 6
Nocturnal Throne
Single-player alternative to Out A Space — playable solo, no multiplayer required. Shares Action with Out A Space.
Time is difficulty. The longer you play, the harder it gets. Collect 100s of items to secure your build and obliterate anything that crosses your path in Nocturnal Throne. There are no limits in this rogue-lite.
- 7
Void Swarm
Single-player alternative to Out A Space — playable solo, no multiplayer required. Shares Action with Out A Space.
Fight through endless enemy swarms in this fast-paced arcade space shooter with survivor-style progression. Upgrade your ship, unlock powerful fighters, and grow stronger with every run.
- 8
Osteomalacia
Single-player alternative to Out A Space — playable solo, no multiplayer required. Shares Action with Out A Space.
Osteomalacia is a 2D top-down survival shooter set in a fog-covered city overrun by mutated beasts. Fight to escape by any means, upgrade your gear and skills, and uncover the story as you survive.