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About Gear Castle

Prepare for the ultimate defense challenge in Gear Castle, where your only goal is to protect the central gear from endless waves of enemies!
Inspired by the intense battles of Gear Battle, this game takes the genre to the next level with fast-paced strategy, idle progression, and epic upgrades.

Defend the Gear:
The gear in the center is your heart. Build powerful turrets, summon mechanical allies, and keep it spinning no matter what.

Upgrade and Merge:
Unlock new defenders, combine them to evolve stronger units, and boost your firepower to survive even the toughest waves.

Endless Waves of Action:
Battle non-stop against hordes of enemies, each wave stronger than the last. Your strategy will determine how long you last.

Idle Rewards:
Earn coins and resources even when you're offline. Progress faster and unlock powerful upgrades.

Compete Globally:
Climb the leaderboard, beat daily challenges, and show who’s the top defender in the gear arena!

Whether you’re a fan of idle games, tower defense, or tactical merging — Gear Castle brings a fresh challenge that’s easy to pick up, hard to master.

Download now and become the last line of defense for the gear!