Free games like Cosmonator
Below are 8 free-to-play Steam games similar to Cosmonator, ranked by player overlap and content similarity. No purchase or Steam login required to view the list. Every pick is a full free-to-play title — not a demo, trial, or time-limited giveaway. imho.run's catalogue refreshes daily, so newly free or newly popular titles surface here without manual editing.
Want the full alternatives list (paid + free + Steam Deck + cheaper picks)? See the parent games like Cosmonator page.
Ranked picks
- 1
Chicken Invaders Universe
Free-to-play alternative to Cosmonator — no purchase or trial window. Shares Action and Indie with Cosmonator.
A deliciously addictive core of finger-blistering shooting action, surrounded by delectable morsels of galactic exploration, spacecraft customization, and community competitions.
- 2
Waves
Free-to-play alternative to Cosmonator — no purchase or trial window. Shares Action and Indie with Cosmonator.
Waves is an Arcade Twin-Stick Shooter that's all about High Scores. Build your combo and drop bombs in pursuit of Leaderboard dominance over seven game-modes!
- 3
Disfigure
Free-to-play alternative to Cosmonator — no purchase or trial window. Shares Action and Indie with Cosmonator.
Disfigure is a grim-dark action rogue-like where you battle relentless hordes of monsters lurking in the shadows. Unlock powerful weapons, craft god-like builds with hundreds of upgrades, slay colossal bosses, and push your limits in intense 20–30 minute survival runs!
- 4
Gatekeeper: Infinity
Free-to-play alternative to Cosmonator — no purchase or trial window. Shares Action and Indie with Cosmonator.
Prologue version of the game Gatekeeper. Gatekeeper: Infinity is a fast-paced rogue-lite shooter where you'll search for the stolen Heart of the Universe and battle machine enemies! Play solo or join forces with friends in co-op mode.
- 5
Alien Swarm: Reactive Drop
Free-to-play alternative to Cosmonator — no purchase or trial window. Shares Action with Cosmonator.
Co-operative top-down shooter game available for free. An epic bug hunt featuring a unique blend of co-op play and squad-level tactics.
- 6
Evil Egg
Free-to-play alternative to Cosmonator — no purchase or trial window. Shares Action with Cosmonator.
Blast it all to hell.
- 7
Relic Hunters Zero: Remix
Free-to-play alternative to Cosmonator — no purchase or trial window. Shares Action and Indie with Cosmonator.
Relic Hunters Zero: Remix is a remaster of the FREE 1 million player hit game about blasting evil space ducks and turtles with tiny cute guns. It’s fast, it’s tactical, and feels deliciously smooth to play. Unlock new weapons, characters and relics to defeat the Ducan Commander!
- 8
I MAED A GAM3 W1TH Z0MB1ES 1N IT!!!1
Free-to-play alternative to Cosmonator — no purchase or trial window. Shares Action and Indie with Cosmonator.
A top down twin stick zombie slaying shooter that you are sure to play again and again!