Single-player games like Project AsteroidZ
Below are 8 single-player Steam games similar to Project AsteroidZ, 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 Project AsteroidZ page.
Ranked picks
- 1
PUFIWEHO
Single-player alternative to Project AsteroidZ — playable solo, no multiplayer required. Shares Action and Indie with Project AsteroidZ.
Protecting Us From Incredibly Worrisome Extremely Hostile Oddities...is what you will be doing with your football! Defend the Earth from the invading disciples of the Deranged Octopus, and learn the ultimate secret of the Universe.
- 2
Skull Head World
Single-player alternative to Project AsteroidZ — playable solo, no multiplayer required. Shares Action and Indie with Project AsteroidZ.
defend skullheadworld. shoot skulls at invading skulls. collect skulls to protect your skull. flush skulls to upgrade. part single-stick bullet-hell shooter, part top-down physics brawler. super addictive arcade fun.
- 3
Phrenetic Shooting Reunion
Single-player alternative to Project AsteroidZ — playable solo, no multiplayer required. Shares Action and Indie with Project AsteroidZ.
[CONTENTS] A playable shooting game "PHRENETIC SHOOTING REUNION" + All future updates/bug fixes. Phrenetic Shooting is a retro tasted shooting game. This game provides an exciting experience for retro 2D shooting game funs.
- 4
Heliocide
Single-player alternative to Project AsteroidZ — playable solo, no multiplayer required. Shares Action with Project AsteroidZ.
Heliocide is a relentless top-down scrolling action! Arm your shields, lasers, guns, bombs and missiles to defend the solar system from a massive invasion!
- 5
Space War: Infinity
Single-player alternative to Project AsteroidZ — playable solo, no multiplayer required. Shares Action and Indie with Project AsteroidZ.
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.
- 6
Shooting Blaster Big Bang Boom
Single-player alternative to Project AsteroidZ — playable solo, no multiplayer required. Shares Action and Indie with Project AsteroidZ.
Are you gonna shoot? YES! Are you gonna blast? YES! Are you gonna make a big bang? YES! Are you gonna make a big boom? YES! So what do you get? Shooting Blaster Big Bang Boom! Come have some fun, it's Good Time time!
- 7
Galactic Explorers
Single-player alternative to Project AsteroidZ — playable solo, no multiplayer required. Shares Action and Indie with Project AsteroidZ.
Galactic Explorers is a top-down 2D retro space shooter inspired by early games such as Galaxian, and Asteroids.
- 8
Blast'N Bounty
Single-player alternative to Project AsteroidZ — playable solo, no multiplayer required. Shares Action and Indie with Project AsteroidZ.
Blast’N Bounty is a vertical scrolling shoot’em up featuring 8 stages players can tackle in the order of their choosing. Cruise through a crazy solar system in a mix of pixel art and low poly 3D with action that’s easy to learn but tough to master!