Free games like Nebula
Below are 8 free-to-play Steam games similar to Nebula, 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 Nebula page.
Ranked picks
- 1

Waves
Free-to-play alternative to Nebula — no purchase or trial window. Shares Action and Indie with Nebula.
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!
- 2

Evil Egg
Free-to-play alternative to Nebula — no purchase or trial window. Shares Action with Nebula.
Blast it all to hell.
- 3

Echoes+
Free-to-play alternative to Nebula — no purchase or trial window. Shares Action and Indie with Nebula.
Echoes+ is an intense retro action space shooter that will test your reaction and concentration levels to the max!
- 4

Relic Hunters Zero: Remix
Free-to-play alternative to Nebula — no purchase or trial window. Shares Action and Indie with Nebula.
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!
- 5

Realm of the Mad God Exalt
Free-to-play alternative to Nebula — no purchase or trial window. Shares Action and Indie with Nebula.
Embark on an exhilarating journey into the pixelated Realm of the Mad God! Join, an action-packed, free-to-play MMO bullet hell game. Discover a world with danger, challenges, and hidden treasures as you battle through waves of enemies. Team up with players and conquer dungeons to become a legend!
- 6

Gatekeeper: Infinity
Free-to-play alternative to Nebula — no purchase or trial window. Shares Action and Indie with Nebula.
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.
- 7

POSTAL
Free-to-play alternative to Nebula — no purchase or trial window. Shares Action and Indie with Nebula.
Take control of The POSTAL Dude in his infamous first outing as he battles to survive in a world gone mad! POSTAL is a classic isometric shooter filled to the brim with fast-paced explosive action.
- 8

Disfigure
Free-to-play alternative to Nebula — no purchase or trial window. Shares Action and Indie with Nebula.
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!