Single-player games like Galactagon
Below are 8 single-player Steam games similar to Galactagon, 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 Galactagon page.
Ranked picks
- 1
Micron Survivor
Single-player alternative to Galactagon — playable solo, no multiplayer required. Shares Action with Galactagon.
Micron Survivor is a survival game with rogue-lite elements where you play as alien microorganisms under the microscope. Evolve, unlock research objectives, find symbiotic weapons, upgrade your builds, and fight hordes of terrestrial organisms to rule the microcosm.
- 2
Eternal Onslaught
Single-player alternative to Galactagon — playable solo, no multiplayer required. Shares Action with Galactagon.
A vampire-survivors-style roguelike where bosses arrive every 90 seconds and the Butcher every 5 minutes Pick a hero, pick a weapon, then survive as the screen fills with the unkilled
- 3
Space PiouPiou
Single-player alternative to Galactagon — playable solo, no multiplayer required. Shares Action with Galactagon.
Blast through endless waves of evil space cat-liens in this chaotic bullet heaven and hell roguelike! Upgrade your tiny PiouPiou into a feathered weapon of mass destruction and survive the cosmic madness for as long as possible.
- 4
Orbit Run
Single-player alternative to Galactagon — playable solo, no multiplayer required. Shares Action with Galactagon.
Orbit Run is an arcade sci-fi game with roguelike elements, in which orbiting asteroids are your only weapons. Catch asteroids and combine them to unlock their run-altering abilities. Skillfully manoeuvre to dodge attacks and land massive asteroid strikes to defeat the ever-increasing waves of foes.
- 5
Cosmic Run
Single-player alternative to Galactagon — playable solo, no multiplayer required. Shares Action with Galactagon.
Cosmic Run is a single-player space roguelite where you battle relentless galactic enemies, strategically upgrade your ship, and help the Zogark family survive their journey across the galaxy. Build powerful combinations, adapt to chaotic encounters, and escape one broken system after another.
- 6
Super Robot Survivors
Single-player alternative to Galactagon — playable solo, no multiplayer required. Shares Action with Galactagon.
A survivor game with missions - not just survival. Rescue astronauts, repair reactors, and hack terminals - while surrounded by hundreds of enemies. Every run is a chaotic, ten-minute showdown.
- 7
SZKELETAL: Estrogen Dracul's Potato Hunger
Single-player alternative to Galactagon — playable solo, no multiplayer required. Shares Action with Galactagon.
Play as estrogen-fueled Dracul in this parodic roguelite 'yet another Vampire Survivors clone'. Fight off hordes of bums, haters, and similar ludolols, collect delicious potatoes, and upgrade your trashy arsenal. Survive this boring AI-slop, pee in the sink, and become the hobo of game scholarship!
- 8
Giant Enemy Robot Crabs
Single-player alternative to Galactagon — playable solo, no multiplayer required. Shares Action with Galactagon.
Crush the countless crabs while blasting your way through the cancer zone!