Single-player games like Cosmic Ray
Below are 13 single-player Steam games similar to Cosmic Ray, 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 Cosmic Ray page.
Ranked picks
- 1
Orbital Invaders
Single-player alternative to Cosmic Ray — playable solo, no multiplayer required. Shares Action and Indie with Cosmic Ray.
3D Sci-Fi arcade Shoot'em up game. Destroy asteroids and aliens. Shoot them all!3D arena shooter with multiple worlds. Spaceship simulator and shmup arcade style game.
- 2
HELLDIVERS™ Dive Harder Edition
Single-player alternative to Cosmic Ray — playable solo, no multiplayer required. Shares Action with Cosmic Ray.
HELLDIVERS™ is a hardcore, cooperative, twin stick shooter. As part of the elite unit called the HELLDIVERS, players must work together to protect SUPER EARTH and defeat the enemies of mankind in an intense intergalactic war.
- 3
HyperParasite
Single-player alternative to Cosmic Ray — playable solo, no multiplayer required. Shares Action and Indie with Cosmic Ray.
A rogue-lite twin-stick shooter/brawler that never plays the same twice. Collect and control 60 different characters as the body-snatching alien Parasite with a grudge against humanity. Fight to the top of the food chain: possess the President, push the Big Red Button and one-up the human race.
- 4
Survivors of the Dawn
Single-player alternative to Cosmic Ray — playable solo, no multiplayer required. Shares Action and Indie with Cosmic Ray.
A roguelite horde-survival bullet heaven with QUINTILLIONS of bullets over QUINTILLIONS of hordes. Mix weapons with items, modify, control chaos at terminals and break through tightening waves.
- 5
Alien Breed: Impact
Single-player alternative to Cosmic Ray — playable solo, no multiplayer required. Shares Action with Cosmic Ray.
Experience the explosive science fiction arcade-shooter that resurrects a much revered franchise in an epic single player and co-op multiplayer campaign.
- 6
Alien Breed 3: Descent
Single-player alternative to Cosmic Ray — playable solo, no multiplayer required. Shares Action with Cosmic Ray.
Experience the final explosive chapter in the Alien Breed series and uncover the horrifying truth surrounding the existence of the Breed. Launch discount good thru Nov. 24 10am PST.
- 7
Beat Hazard 2
Single-player alternative to Cosmic Ray — playable solo, no multiplayer required. Shares Action and Indie with Cosmic Ray.
Experience your music collection as 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.
- 8
Space War: Infinity
Single-player alternative to Cosmic Ray — playable solo, no multiplayer required. Shares Action and Indie with Cosmic Ray.
Vertical semi-procedural shmup with upgrades, real-time enemy waves, and infinite replayability. Level up your ship, unlock 20+ weapons, defeat 5 bosses, and survive endless bullet-hell combat.
- 9
Operation Hardcore
Single-player alternative to Cosmic Ray — playable solo, no multiplayer required. Shares Action and Indie with Cosmic Ray.
Operation Hardcore is an action-packed 2D side-scrolling shooter inspired by classic twitchy action games of yesteryear, but with modern touches and conveniences.
- 10
TOXICANT
Single-player alternative to Cosmic Ray — playable solo, no multiplayer required. Shares Action and Indie with Cosmic Ray.
TOXICANT offers a sinister twist on the survival horror genre, featuring randomized levels and roguelike elements.
- 11
Brainmelter Deluxe
Single-player alternative to Cosmic Ray — playable solo, no multiplayer required. Shares Action and Indie with Cosmic Ray.
Melt your brain with this twisted take on the platform genre!
- 12
Super Rocket Ride
Single-player alternative to Cosmic Ray — playable solo, no multiplayer required. Shares Action and Indie with Cosmic Ray.
Hardcore retro action. Rocket go boom!
- 13
Astral Flux
Single-player alternative to Cosmic Ray — playable solo, no multiplayer required. Shares Action and Indie with Cosmic Ray.
Astral Flux is an action-platformer with roguelite elements where each run is different. Traverse hostile alien planets, discover dark secrets, and face powerful foes in combat.