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

Waves
Free-to-play alternative to Really Big Sky — no purchase or trial window. Shares Action and Indie with Really Big Sky.
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

Orbital Gear
Free-to-play alternative to Really Big Sky — no purchase or trial window. Shares Action and Indie with Really Big Sky.
Orbital Gear is a fast paced sidescroller shooter where you utilize the gravitation of celestial objects to give you momentum through space. Arm your Mech with two of the twelve different weapons and destroy your enemies.
- 3

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

Evil Egg
Free-to-play alternative to Really Big Sky — no purchase or trial window. Shares Action with Really Big Sky.
Blast it all to hell.
- 5

Chicken Invaders Universe
Free-to-play alternative to Really Big Sky — no purchase or trial window. Shares Action and Indie with Really Big Sky.
A deliciously addictive core of finger-blistering shooting action, surrounded by delectable morsels of galactic exploration, spacecraft customization, and community competitions.
- 6

Shooty Skies
Free-to-play alternative to Really Big Sky — no purchase or trial window. Shares Action and Indie with Really Big Sky.
The creators of Crossy Road present Shooty Skies! Shoot, dodge, duck, goose and weave. Take to the skies!
- 7

Gun Devil
Free-to-play alternative to Really Big Sky — no purchase or trial window. Shares Action and Indie with Really Big Sky.
GUN DEVIL is an explosive platformer about rescuing your kidnapped hell wife from Satan's child, the Caramelized Dumbass and his Pimp Legion.
- 8

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