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

Overvoid
Single-player alternative to Asteros — playable solo, no multiplayer required. Shares Action with Asteros.
Overvoid - is a dark sci-fi third-person space-combat roguelite. You are a starship pilot trapped in an endless cycle across hostile space sectors. Fight relentless enemy waves, experiment with builds, gather resources, and unlock weapons, ships, and modules to break the cycle.
- 2

Shifter
Single-player alternative to Asteros — playable solo, no multiplayer required. Shares Action with Asteros.
Shifter is a third-person action game where you shift the direction of gravity, fight enemies, and run/fly/fall around a complex procedurally generated dream world. It has unique boss fights, weapons, skills, enemies, and more! Your dream is hacked through a microchip, and you have to wake up.
- 3

Swarm Harvest
Single-player alternative to Asteros — playable solo, no multiplayer required. Shares Action with Asteros.
Congratulations, you're hired! Blast bugs, deploy defensive towers, and command a pack of powerful attack drones to carve through endless alien swarms. Evolve into an unstoppable bug-blasting machine with absurdly overpowered builds to generate massive profits and make the corporation proud.
- 4

Eris
Single-player alternative to Asteros — playable solo, no multiplayer required. Shares Action with Asteros.
ERIS is a rail shooter roguelike. Shoot, destroy, gather resources, and through an engaging narrative, you’ll discover what your fate holds. In a story that will keep you hooked for at least 8 hours, you’ll learn how best to build your ship to defeat the galaxy’s most powerful enemies.
- 5

IDUN Rogue
Single-player alternative to Asteros — playable solo, no multiplayer required. Shares Action with Asteros.
IDUN Rogue redefines roguelite shooters by putting an entire upgradeable army at your command. Survive against thousands of enemies physically piling up to eat you and your army on a fully destructible battlefield!
- 6

Master of Chaos: Beat or Break the Game
Single-player alternative to Asteros — playable solo, no multiplayer required. Shares Action with Asteros.
Pulverize your enemies for underestimating this cute little wizard by counter attacks, deflecting projectiles, unleashing face-melting ultimate abilities and building insane combos boosting your power until you are strong enough to beat the boss or break the game - Either way you win.
- 7

Vectorfall
Single-player alternative to Asteros — playable solo, no multiplayer required. Shares Action with Asteros.
Vectorfall is a fast top-down space-shooter extraction roguelite built around risky sector runs. Swap between six ships mid-fight, raid hostile signals, break the Command Node, and extract your modules before Alert brings the patrols down on you.
- 8

Super Robot Survivors
Single-player alternative to Asteros — playable solo, no multiplayer required. Shares Action with Asteros.
A Roguelite Bullet-Heaven where you rescue astronauts, repair reactors, and hack terminals while blasting hordes of robots in high-stakes, 10-minute showdowns. From the Creative Director of Destroy All Humans! 2 and co-creator of TY the Tasmanian Tiger.