Single-player games like Transistor Defense
Below are 8 single-player Steam games similar to Transistor 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 Transistor Defense page.
Ranked picks
- 1
Zero Bugs Given
Single-player alternative to Transistor Defense — playable solo, no multiplayer required. Shares Strategy and Indie with Transistor Defense.
Zero Bugs Given is a tower defense / roguelike game designed with the ambition of making every run different from the others. Every wave, a pair of bonus and malus will force you to adapt in the best way you can. Build your defense and try survive as long as you can!
- 2
City Defense Z
Single-player alternative to Transistor Defense — playable solo, no multiplayer required. Shares Action and Strategy with Transistor Defense.
City Defense Z combines base-building and base defense in a roguelite progression loop. Build by day, defend by night, and face a growing zombie threat. Every defeat unlocks permanent upgrades, helping you rebuild smarter and push further each time. See how many days you can last.
- 3
Ghosts Keep Out
Single-player alternative to Transistor Defense — playable solo, no multiplayer required. Shares Strategy and Indie with Transistor Defense.
Defend your base in this Roguelite survival shooter TD! Mix random skills + evolve gems to craft your Build. 5-min fast rounds, intense zombie & ghost hordes. Triple progression: Spirits, guns, heroes. Easy to learn, hard to put down. Low barrier, high ceiling. Every run is fresh!
- 4
Purification Front (Task Force Purge)
Single-player alternative to Transistor Defense — playable solo, no multiplayer required. Shares Action and Strategy with Transistor Defense.
Purification Frontline is a post-apocalyptic roguelite bullet-hell action shooter. Build your squad, switch characters in battle, collect relics, and carve your way through branching tower runs with fast-paced combat and explosive firepower.
- 5
Tower Lab
Single-player alternative to Transistor Defense — playable solo, no multiplayer required. Shares Strategy and Indie with Transistor Defense.
Physics-based TD where enemies have no health, push them off instead! Build devastating tower combos that push, pull, and launch enemies. Unlock cards, upgrade towers, discover broken synergies, and dominate through creative strategies.
- 6
Silky Road
Single-player alternative to Transistor Defense — playable solo, no multiplayer required. Shares Action and Strategy with Transistor Defense.
Build your train from unique carts, fight waves of enemies, collect loot, and upgrade your setup to get stronger.
- 7
DRONES
Single-player alternative to Transistor Defense — playable solo, no multiplayer required. Shares Action and Strategy with Transistor Defense.
DRONES is a run-based autobattler deckbuilder. Choose the enemies you want to engage, discard the ones you don't. Unlock and guide autonomous drones, and acquire components, munitions, hacks, and modulators to stop planetary invasions in daily seeded runs.
- 8
Wandering Monolith: Rogue TD
Single-player alternative to Transistor Defense — playable solo, no multiplayer required. Shares Strategy and Indie with Transistor Defense.
You are the Wandering Monolith, falling from the sky. Summon towers, expand the board, defend your core, and build your deck of upgrades to conquer countless worlds.