Single-player games like Idle Tower Defense
Below are 8 single-player Steam games similar to Idle Tower Defense, 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 Idle Tower Defense page.
Ranked picks
- 1
Nodebuster
Single-player alternative to Idle Tower Defense — playable solo, no multiplayer required. Shares Strategy and Indie with Idle Tower Defense.
Nodebuster is a short, experimental incremental game about busting nodes and destroying reality.
- 2
Antivirus PROTOCOL
Single-player alternative to Idle Tower Defense — playable solo, no multiplayer required. Shares Strategy and Indie with Idle Tower Defense.
Antivirus PROTOCOL is an incremental game about destroying viruses. Learn and adapt, collect data, upgrade yourself, and eliminate the Virus that has taken over the world.
- 3
Go Up
Single-player alternative to Idle Tower Defense — playable solo, no multiplayer required. Shares Indie and Casual with Idle Tower Defense.
An atmospheric and esoteric exploration into darkness and creation. Unearth mysterious minigames and ascertain new methods of ascending ever upwards. In order for the number to go up, so must you!
- 4
FIND YOUR WINGS
Single-player alternative to Idle Tower Defense — playable solo, no multiplayer required. Shares Strategy and Indie with Idle Tower Defense.
A bite-sized tower defense roguelike!
- 5
Combo Overload
Single-player alternative to Idle Tower Defense — playable solo, no multiplayer required. Shares Indie and Casual with Idle Tower Defense.
Fight enemies and upgrade yourself in Combo Overload, a short incremental game, with a huge skill tree. After becoming strong enough you'll unlock the combo. Are you able to overload it?
- 6
Squash Ball
Single-player alternative to Idle Tower Defense — playable solo, no multiplayer required. Shares Indie and Casual with Idle Tower Defense.
Welcome to Squash Ball, the ultimate idle clicker sandbox game with physics, themes, clicking stats, and a leveling system. Perfect for casual gamers and those who love to fidget with items digitally. With its colorful design and addicting gameplay, it's easy to pick up and hard to put down.
- 7
All Aboard! The Train Defense Express
Single-player alternative to Idle Tower Defense — playable solo, no multiplayer required. Shares Strategy and Indie with Idle Tower Defense.
Protect the Infinite Power Generator by looping around the train tracks! Battle endless waves of enemies in this unique hybrid of auto-battler, survivor, tower defense, idle/clicker gameplay. How long can you survive?
- 8
Xenosensory
Single-player alternative to Idle Tower Defense — playable solo, no multiplayer required. Shares Strategy and Indie with Idle Tower Defense.
Xenosensory is a short incremental game with horror themes. Use your cursor to bust Xenos and save convicts then spend your research points on skill tree upgrades, actions, gadgets, and uncover the true horrifying nature of this space station nightmare.