Single-player games like Asteroid Core
Below are 16 single-player Steam games similar to Asteroid Core, 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 Asteroid Core page.
Ranked picks
- 1
Defend from Candyland!
Single-player alternative to Asteroid Core — playable solo, no multiplayer required. Shares Strategy and Indie with Asteroid Core.
Step into the world of Defend from Candyland! where retro tower defense meets strategic depth. Plant and upgrade trees, use powerful buffs, and reveal enemy paths to shield Eden from waves of candy invaders. Master the challenge now!
- 2
Lazy Galaxy 2
Single-player alternative to Asteroid Core — playable solo, no multiplayer required. Shares Strategy and Indie with Asteroid Core.
Lazy Galaxy 2 is an idle/clicker game with base-building and RTS elements. Lead an evil (albeit lazy) alien race to conquer the universe! Expand your base, fight vicious foes, and conquer the galaxies. Acquire combat experience and convert into candy, the most precious alien resource!
- 3
The Unearthened - Complete Edition
Single-player alternative to Asteroid Core — playable solo, no multiplayer required. Shares Strategy with Asteroid Core.
Build & defend a small remote mining base on Taichin XI from the alien hordes. Deploy defenses, upgrade your turrets and get ready for the nightfall. The Unearthened is a classic Idle Tower Defense game where you build towers and prepare for the invasion.
- 4
Galactic Civilizations® II: Ultimate Edition
Single-player alternative to Asteroid Core — playable solo, no multiplayer required. Shares Strategy and Indie with Asteroid Core.
Get the complete GalCiv II saga including Galactic Civilizations II: Dread Lords, the expansion pack Dark Avatar, and the newest expansion pack Twilight of the Arnor!
- 5
Crusaders Quest : Hero Town
Single-player alternative to Asteroid Core — playable solo, no multiplayer required. Shares Strategy and Indie with Asteroid Core.
Welcome to 《Crusader Quest: Hero Town》! A little town inside your PC! Gather heroes and rebuild the town in 《Crusader Quest: Hero Town》, a desktop idle RPG that can be enjoyed even during work hours.
- 6
Goblin Buster: Incremental Tower Defense
Single-player alternative to Asteroid Core — playable solo, no multiplayer required. Shares Strategy and Casual with Asteroid Core.
Goblin Buster is an incremental tower defense game with deep upgrade mechanics. Obliterate annoying goblins, collect materials, discover powerful relics, invest in unique buildings and spend your resources to upgrade towers and magical spells with a massive skill tree!
- 7
Mars or Die!
Single-player alternative to Asteroid Core — playable solo, no multiplayer required. Shares Strategy and Indie with Asteroid Core.
Control two characters simultaneously! Survive, gather, collect upgrades, fight all sizes of one-eyed Martians, build defensible outposts and conquer Mars, in this glorious mix between roguelite and tower defense.
- 8
IDUN - Frontline Survival
Single-player alternative to Asteroid Core — playable solo, no multiplayer required. Shares Strategy and Indie with Asteroid Core.
A defense RTS where you can move turrets at will. Extract resources, upgrade technology, and defend against enemy swarms in a gripping space campaign. Hold the line, set up your turrets, and brace for screen-filling hordes!
- 9
GravNewton
Single-player alternative to Asteroid Core — playable solo, no multiplayer required. Shares Indie with Asteroid Core.
Challenge all your skill and quick thinking ability in this precision platform game, where you are a bitrom who controller over gravity called Newton, who is trying to escape from a deformed creature that relentlessly follows him in subspace.
- 10
Zodiac Hentai - Hellish Memory
Single-player alternative to Asteroid Core — playable solo, no multiplayer required. Shares Indie with Asteroid Core.
In this game you have to memorize the cards while surviving a real hell of bullets, with illustrations of beautiful sexy girls. Challenge your skill, your reflexes, your memory and dodge the shots to leave the girls as they came into the world.
- 11
Gimel Dimension
Single-player alternative to Asteroid Core — playable solo, no multiplayer required. Shares Indie with Asteroid Core.
Defeat the Gimel invasion on this side shooter that explores the contrast lack between the projectiles and the background to create an unusual challenge that will confuse your head
- 12
Impulsow
Single-player alternative to Asteroid Core — playable solo, no multiplayer required. Shares Indie with Asteroid Core.
Challenge your ability and your mind in this action puzzle with a unique gameplay where you use the impulse to move and overcome challenges ranging from thorns to missile launchers.
- 13
Memorise'n'run
Single-player alternative to Asteroid Core — playable solo, no multiplayer required. Shares Indie with Asteroid Core.
Challenge your ability, your reflexes and your memory to avoid from the shots while you solve a memory game, because in Memorise'n'Run you need to memorize the cards while survive of a real bullet hell.
- 14
Zodiac - Hellish Memory
Single-player alternative to Asteroid Core — playable solo, no multiplayer required. Shares Indie and Casual with Asteroid Core.
Challenge your ability, your reflexes and your memory to avoid from the bullets to defeat the zodiac spirits while memorize the cards and survive of a real bullet hell with difficulties for all playstyles.
- 15
GravKitten
Single-player alternative to Asteroid Core — playable solo, no multiplayer required. Shares Indie with Asteroid Core.
Control gravity to overcome obstacles and traps Larger stages, collectibles, skins, leaderboards and more. Buy now and start your rage quits!
- 16
EvoluShip
Single-player alternative to Asteroid Core — playable solo, no multiplayer required. Shares Indie with Asteroid Core.
In this game with elements of roguelike, RPG and Bullet Hell, you control a ship with the power to absorb enemies and improve itself, but even then it won't be easy, because you'll face the hordes of enemies with a good variety of weapons that come randomly as you pass level.