Single-player games like Nullstar: Solus
Below are 8 single-player Steam games similar to Nullstar: Solus, 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 Nullstar: Solus page.
Ranked picks
- 1

Project Moonborn
Single-player alternative to Nullstar: Solus — playable solo, no multiplayer required. Shares Indie and Adventure with Nullstar: Solus.
Play as a werewolf den mother in a 2D platformer roguelike. Master powerful combat abilities and free-flow movement to slay bosses, destroy hordes of enemies and return to your secluded Wolf Den between levels to craft and upgrade.
- 2

Inverse Evolver
Single-player alternative to Nullstar: Solus — playable solo, no multiplayer required. Shares Indie and Adventure with Nullstar: Solus.
Inverse Evolver is a side-scrolling action that combines roguelike mechanics. Explore different dungeons; use diverse items to form powerful combos, and beat ferocious beasts and bosses.
- 3

Fist of the Forgotten
Single-player alternative to Nullstar: Solus — playable solo, no multiplayer required. Shares Indie and Adventure with Nullstar: Solus.
Jump, punch, slide, and swing through the remnants of civilizations, facing powerful bosses to unlock new movement and combat abilities for your giant, mechanical fist as you seek out the remnants of humankind.
- 4

System // Crash
Single-player alternative to Nullstar: Solus — playable solo, no multiplayer required. Shares Indie and Adventure with Nullstar: Solus.
A momentum platformer, with combo-centered hack 'n slash combat. Use your trusty sword, TyBreaker (Among other weapons), to cut and destroy every TyCorp drone in your way. Cut the drones, and take back the world.
- 5

Last Summer Iteration
Single-player alternative to Nullstar: Solus — playable solo, no multiplayer required. Shares Indie and Adventure with Nullstar: Solus.
little scary Walking simulator in Japanese summer
- 6

Atomic Hazard
Single-player alternative to Nullstar: Solus — playable solo, no multiplayer required. Shares Indie and Adventure with Nullstar: Solus.
Atomic Hazard is a action puzle platformer. Take advantage of your environment in physics-based movement and combat.
- 7

Rope Cow - Rope it to The Cow
Single-player alternative to Nullstar: Solus — playable solo, no multiplayer required. Shares Indie and Adventure with Nullstar: Solus.
Rope swing like never before.
- 8

Jet Gunner: Refueled
Single-player alternative to Nullstar: Solus — playable solo, no multiplayer required. Shares Indie and Adventure with Nullstar: Solus.
Jet Gunner is reloaded, remade and refueled for a new explosive 8-bit adventure. Relive the past glory days where VHS was king, phones didn't have screens and you'd have to blow into a cartridge to get your gaming fix.