Single-player games like Alpha Star
Below are 8 single-player Steam games similar to Alpha Star, 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 Alpha Star page.
Ranked picks
- 1
Galactagon
Single-player alternative to Alpha Star — playable solo, no multiplayer required. Shares Action with Alpha Star.
Battle through endless cosmic hordes in a galaxy where your choices shape each run. Upgrade and collect a huge variety of weapons and upgrades to create unique builds. Customize the arena itself by adding new areas to it, each new area bringing it's own dangers and rewards.
- 2
Into The Void
Single-player alternative to Alpha Star — playable solo, no multiplayer required. Shares Action and Indie with Alpha Star.
A wormhole has opened up letting aliens terrorize your city. Pilot your spacecraft and destroy the aliens using flamethrowers, missiles, gatling guns, shockwaves, and more!
- 3
A-Spec First Assault
Single-player alternative to Alpha Star — playable solo, no multiplayer required. Shares Action and Indie with Alpha Star.
Fly corvette-class warships. Engage in combat operations against fighters, frigates, cruisers, and more dangerous foes. Choose the ships, weapons, and improvement modules, your group will deploy with. Use tactical command decisions to overcome dangerous encounters with unrelenting enemies.
- 4
PolyDogfight
Single-player alternative to Alpha Star — playable solo, no multiplayer required. Shares Action and Indie with Alpha Star.
Prepare to Fly, Dodge, Shoot, and Destroy in PolyDogfight. Unlock all the planes and maps to find your style. Obliterate waves of planes in an open-air arena as quickly as possible to get the high score and top the global leaderboard!
- 5
Void Wars
Single-player alternative to Alpha Star — playable solo, no multiplayer required. Shares Action and Indie with Alpha Star.
Dodge, shoot and free the galaxy of the evil space mega corp. Use a variety of different weapons and spaceships, each with different playstyles to overcome many challenging levels.
- 6
Chronos Bound: How We Became Heroes
Single-player alternative to Alpha Star — playable solo, no multiplayer required. Shares Action and Indie with Alpha Star.
Pilot a lone ship through a collapsing orbital station in a modern 2.5D shoot ’em up. Block bullets with a 360° directional shield, destroy grotesque wreck-born enemies, defeat colossal bosses, and build new upgrade paths with every run — a love letter to classic shoot ’em ups.
- 7
Ultra Imposer
Single-player alternative to Alpha Star — playable solo, no multiplayer required. Shares Action and Indie with Alpha Star.
Pilot the Ultra Imposer drone and eradicate the enemy army with your blasters or lock-on to multiple enemy targets and unleash a barrage of seeker missile destruction. Ultra Imposer is a third-person VR-only shooter action game on rails with unique gameplay and boss battles!
- 8
PNR: Point of No return
Single-player alternative to Alpha Star — playable solo, no multiplayer required. Shares Action and Indie with Alpha Star.
You don't dodge. You push through. PNR: Point of No Return is a space opera roguelite where you blast through enemy fleets head-on, forging a new loadout every sortie. Build your arsenal mid-battle, come back alive, hit the jackpot on the Slingshot, and do it all again.