Single-player games like Towership Defender
Below are 8 single-player Steam games similar to Towership Defender, 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 Towership Defender page.
Ranked picks
- 1
Galaxy Defenders (Classic TD)
Single-player alternative to Towership Defender — playable solo, no multiplayer required. Shares Casual with Towership Defender.
A classic tower defense game set in space! Build and upgrade towers, defend your portal from waves of alien invaders, and outsmart evolving threats across handcrafted and procedural maps.
- 2
Polydangerous
Single-player alternative to Towership Defender — playable solo, no multiplayer required.
Build and defend a mining operation on a distant planet in this tower defense bullet heaven shooter. Build and upgrade defenses, fight off waves of enemies from a rival corporation, and earn enough credits to buy your body back and escape this deep space hellhole.
- 3
Orbital Command
Single-player alternative to Towership Defender — playable solo, no multiplayer required.
Orbital Command is about controlling planet based weapon systems to defend your planets from large asteroids and hostile invaders. Will you be able to complete the Dyson Sphere, or will your planets end up barren husks?
- 4
Neon Grid Defenders
Single-player alternative to Towership Defender — playable solo, no multiplayer required. Shares Casual with Towership Defender.
Neon Grid Defenders is a sci-fi roguelite tower defense game featuring a free and unique upgrade system, decision based path generation and a strong but static difficulty curve. Build your path, place your towers, hook them up with upgrades and melt your enemies!
- 5
Planetary Defense: An Orbital Turret Defense System
Single-player alternative to Towership Defender — playable solo, no multiplayer required.
2D space shooter and turret defense come together to create the Planetary Defense System this world needs! Shoot down asteroids and aliens and survive the bosses in this arcade like game featuring customizable satellites, projectiles, and upgradable Cannon and Planet Shield systems.
- 6
Unearthing Invasions
Single-player alternative to Towership Defender — playable solo, no multiplayer required. Shares Casual with Towership Defender.
A 3d tower defense game set in space. Protect the last resource outposts from the ongoing Alien attacks! Can you hold out in these ever increasing difficult waves of enemies and protect the last of your resources and Energy?
- 7
The Echoes of Mars
Single-player alternative to Towership Defender — playable solo, no multiplayer required. Shares Casual with Towership Defender.
The Echoes of Mars is a voxel-style tower defence game. Defend your research base on Mars from ancient creatures by strategically placing towers and using advanced tech.
- 8
Super Sanctum TD
Single-player alternative to Towership Defender — playable solo, no multiplayer required. Shares Casual with Towership Defender.
Super Sanctum TD is a retro-styled Tower Defense game that focuses on strategy, customization and replayability. Build advanced mazes and construct powerful towers to prevent alien hordes from reaching the Core!