Single-player games like Cosmolon
Below are 8 single-player Steam games similar to Cosmolon, 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 Cosmolon page.
Ranked picks
- 1

Red Blue Cell
Single-player alternative to Cosmolon — playable solo, no multiplayer required. Shares Action with Cosmolon.
This is a retro barrage flying shooting game. Drive a space fighter plane, shuttle between planets and space stations, and use powerful firepower to destroy enemy space battleships! !
- 2

Galactic Patrol
Single-player alternative to Cosmolon — playable solo, no multiplayer required. Shares Action with Cosmolon.
A lost 1998 arcade-style shooter returns! Fight through 25 levels and 300+ waves of alien attacks inspired by classic shoot-'em-ups like Space Invaders and Galaga, featuring top-down, side-scrolling, and rear-view gameplay.
- 3

AWA 2024
Single-player alternative to Cosmolon — playable solo, no multiplayer required. Shares Action and Indie with Cosmolon.
AWA 2024 is a fast paced shoot-em-up featuring modern military aircraft. Choose one of the ten fighter aircraft and take the battle to the skies throughout nine action-packed stages each with their own special end-level boss.
- 4

Astrokicker
Single-player alternative to Cosmolon — playable solo, no multiplayer required. Shares Action and Indie with Cosmolon.
Mixing old and new, Astrokicker is inspired by classic shootemups going back to the 80s, with a few twists. The player gets to fly in any direction, and using a combination of skill and strategy, takes out the starbases controlling warpfields.
- 5

Asteroid Blasters
Single-player alternative to Cosmolon — playable solo, no multiplayer required. Shares Action with Cosmolon.
Asteroid Blasters is a non-stop action space shooter. Inspired by Asteroids, this game will see you choose between 6 different ships each with their own characteristics and utilize a variety of weapon powerups to eradicate your enemies. Play 2 players to increase your chance of survival.
- 6

Space Adventure
Single-player alternative to Cosmolon — playable solo, no multiplayer required. Shares Action and Indie with Cosmolon.
Space adventure is a classic Shoot 'Em Up style game with a fast pace and a test of your reflexes. Maneuver, collect bonuses and score points to become the best!
- 7

Orbital Bombardment
Single-player alternative to Cosmolon — playable solo, no multiplayer required. Shares Action with Cosmolon.
Play a retro vibe with a synthwave music-infused space shooter. You orbit around planets and bombard the evil aliens to save the galaxy. Use different spaceships with unique weapons to your tactical advantage to defeat the planetary defenses and to destroy the enemies.
- 8

Stellar Space
Single-player alternative to Cosmolon — playable solo, no multiplayer required. Shares Action and Indie with Cosmolon.
Stellar Space is a new take on a classic arcade game with a modern, rogue-like, form for new players to enjoy!