Single-player games like Really Big Sky
Below are 10 single-player Steam games similar to Really Big Sky, 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 Really Big Sky page.
Ranked picks
- 1
Devastation - Annihilate the Alien Race
Single-player alternative to Really Big Sky — playable solo, no multiplayer required. Shares Action and Indie with Really Big Sky.
Devastation - Annihilate the Alien Race, is a 2D, dual stick shoot em' up, bullet hell, arcade game. Tear up hordes of aliens with skill based game play, bombs & upgrades to obliterate everything!. Gun down 11 massive bosses, bank insane score on the leaderboards & overcome clouds of enemy fire.
- 2
Super Mega Space Blaster Special Turbo
Single-player alternative to Really Big Sky — playable solo, no multiplayer required. Shares Action and Indie with Really Big Sky.
The definitive 'Turbo Edition' of the easy to play hard to master space blaster. Bringing more game modes, ships, challenges, upgradable power-ups and frantic retro space blasting fun than ever before. Alone or in co-op you’ll keep coming back to unlock ships, upgrade weapons and beat your high-score.
- 3
Guntech 2
Single-player alternative to Really Big Sky — playable solo, no multiplayer required. Shares Action with Really Big Sky.
Guntech 2 is a return of the good old “cave flyer” shoot ’em ups genre. It’s a twin-stick shooter influenced by such classics as Thrust, Oids, Geometry Wars, and Asteroids. You can play in single-player, or couch co-op with up to 4 players!
- 4
Beat Hazard
Single-player alternative to Really Big Sky — playable solo, no multiplayer required. Shares Action and Indie with Really Big Sky.
Experience your music collection like never before with this intense music driven arcade shooter. Each of your songs will have its own unique ebb and flow based on the music.
- 5
Stardust Galaxy Warriors: Stellar Climax
Single-player alternative to Really Big Sky — playable solo, no multiplayer required. Shares Action and Indie with Really Big Sky.
Stardust Galaxy Warriors: Stellar Climax is a fast-paced couch co-op action shooter with SHMUP/Brawler gameplay and RPG elements. Choose your mechs, weapons & upgrades then soar through space, defeat evil & save the future... from itself!
- 6
Gunboat God
Single-player alternative to Really Big Sky — playable solo, no multiplayer required. Shares Action and Indie with Really Big Sky.
Become the all-powerful Gunboat God in this fluid shoot 'em up. Carve the waves as you stylishly fight hordes of monsters in hundreds of quick-fire missions. Transform your Gunboat and upgrade your weapons, skills and abilities to take on giant, challenging, multi-stage bosses!
- 7
Enemy Mind
Single-player alternative to Really Big Sky — playable solo, no multiplayer required. Shares Action and Indie with Really Big Sky.
A retro shooter with a new power: the power to become any ship.Lost in the depths of space, you are a being of pure psychic energy with the uncanny power to take over and control anything you see in order to survive.Built for PC, Enemy Mind lets you battle your way through 70+ waves of challenging enemies.
- 8
Bartlow's Dread Machine
Single-player alternative to Really Big Sky — playable solo, no multiplayer required. Shares Action with Really Big Sky.
An artifact from the past returns in Bartlow's Dread Machine, a game from the dawn of the Electric Age. Dread Machine is a dual stick arcade shooter with single player and couch co-op modes, six scintillating game worlds and a cast of improbable monsters and characters.
- 9
Wake
Single-player alternative to Really Big Sky — playable solo, no multiplayer required. Shares Action and Indie with Really Big Sky.
Wake is the story of an engineer trapped on a sinking ship. Navigate through the ship however you want to find your way to the surface above, but avoid the ship's corrupted security system!Key Features Run and swim to escape a sinking ship Dodge bullets, fire, electricity and LASERS - but most of all avoid drowning!
- 10
Lunnye Devitsy
Single-player alternative to Really Big Sky — playable solo, no multiplayer required. Shares Indie with Really Big Sky.
An alien lost on a strange planet needs help returning home