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

Viral Reload EX
Single-player alternative to Galactic Retribution Vol.1 — playable solo, no multiplayer required. Shares Action and Indie with Galactic Retribution Vol.1.
Viral Reload EX is a shoot-em-up with a dash mechanic where you shrink down to fight infections at a microscopic scale! Can you defeat the evil Kyle Kaboom before he destroys the moon?
- 2

Nova Swarm
Single-player alternative to Galactic Retribution Vol.1 — playable solo, no multiplayer required. Shares Action and Indie with Galactic Retribution Vol.1.
Pick a ship, dive into readable bullet chaos, take down huge angry bosses, grab the bonus core you probably should have left alone, and chase one cleaner run in Nova Swarm.
- 3

Project Neon
Single-player alternative to Galactic Retribution Vol.1 — playable solo, no multiplayer required. Shares Action and Indie with Galactic Retribution Vol.1.
Blast through enemy defenses in this intense 16-bit shoot ‘em up (or shmup), dismantling interplanetary shields to bring humanity’s last hope back from Mars and save Earth from ecological collapse.
- 4

Lober Lobe
Single-player alternative to Galactic Retribution Vol.1 — playable solo, no multiplayer required. Shares Action and Indie with Galactic Retribution Vol.1.
Shoot psychic orbs, collect useful thoughts, upgrade your Probe with speed, maneuverability, satellites, resistance and suppress negative thoughts in this Brain centric, procedurally generated bullet hell shoot 'em up.
- 5

Asteroid Navigation
Single-player alternative to Galactic Retribution Vol.1 — playable solo, no multiplayer required. Shares Action and Indie with Galactic Retribution Vol.1.
Captain a starship in a thrilling 2D shooter, dodging asteroids across galaxies. As you journey to Axios Station, each galaxy's challenge intensifies. Can you navigate the cosmic gauntlet?
- 6

ITZO
Single-player alternative to Galactic Retribution Vol.1 — playable solo, no multiplayer required. Shares Action and Indie with Galactic Retribution Vol.1.
You’re a mediator trying to prevent an interplanetary conflict. How will you do it? By destroying infrastructure, overthrowing a monarchy, wiping out a hive, and eradicating half of a nebula… All this and more in ITZO, an 8-bit bullet hell game!
- 7

Deathroids
Single-player alternative to Galactic Retribution Vol.1 — playable solo, no multiplayer required. Shares Indie and Casual with Galactic Retribution Vol.1.
Remember the golden age of arcades playing a game with all the classic 80's/90's space-shooting features. See how far you can go by destroying all enemy robots that are ready to planet earth attack.
- 8

THUNDER STRIKER
Single-player alternative to Galactic Retribution Vol.1 — playable solo, no multiplayer required. Shares Action and Casual with Galactic Retribution Vol.1.
Blast your way through enemy territory and level up your versatile arsenal of high-tech weapons in this handheld game style retro shmup!