Single-player games like Astro Company
Below are 8 single-player Steam games similar to Astro Company, 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 Astro Company page.
Ranked picks
- 1
Axom: Conquest
Single-player alternative to Astro Company — playable solo, no multiplayer required. Shares Strategy with Astro Company.
Build and defend your fortress while expanding out in this hold-out tower defense roguelite. Battle across a procedural alien homeworld, fight back corrupted terrain, discover hundreds of structures and upgrades as physics-driven swarms threaten to wipe out humanity.
- 2
Endless Defense
Single-player alternative to Astro Company — playable solo, no multiplayer required. Shares Strategy and Early Access with Astro Company.
Endless Defense is a roguelite sci-fi tower defense game where every run becomes a new build. Place turrets, choose traits, draw upgrade cards, use special tiles, and evolve your defense to survive endless waves of enemies, elites, and bosses.
- 3
Ironfront Express
Single-player alternative to Astro Company — playable solo, no multiplayer required. Shares Strategy with Astro Company.
Upgrade your engine’s arsenal in this bullet hell, tower defense roguelite featuring the most heavily armored locomotive in existence. Engineer and command the Ironfront Express in a unique take on lane defense where you upgrade with specialized turrets, drones, and tactical abilities.
- 4
Poker Defense
Single-player alternative to Astro Company — playable solo, no multiplayer required. Shares Strategy with Astro Company.
Build your defenses with the towers you earn from playing cards and use your power ups to stop your enemies in this strategic card game tower defense!
- 5
AeonFall
Single-player alternative to Astro Company — playable solo, no multiplayer required. Shares Strategy with Astro Company.
Endless waves of 100,000 infected pour toward you. A brutally hard roguelike defense built on the Paradox of Progress: every advance raises the noise, and louder noise draws a deadlier swarm. Design your base, break through with one unit you control, and adapt each run. Survive a planet alone.
- 6
Starfort
Single-player alternative to Astro Company — playable solo, no multiplayer required. Shares Strategy with Astro Company.
Defend your empire in a sci-fi tower defense game. Build deadly combinations of railguns, lasers, gravity wells, drones, and cannons across three maps, 50 levels per map, and four difficulty modes.
- 7
Bermuda Bastion
Single-player alternative to Astro Company — playable solo, no multiplayer required. Shares Strategy with Astro Company.
Survive 33 days in the heart of the Bermuda Triangle! Build triangular structures to defend against malevolent squares, pentagons, and other geometric monsters. In this chaotic city-builder roguelike, every mistake pulls your Bastion closer to the depths.
- 8
Rogue Realm: Guardian Grids
Single-player alternative to Astro Company — playable solo, no multiplayer required. Shares Strategy with Astro Company.
Rogue Realm: Guardian Grids is a medieval fantasy blend of tower defense and roguelike progression. Build defenses on a grid, manage resources, and survive ever-evolving enemies.