Updated Jul 10, 2026 · v31.5.8.0
Merge gears, spin weapons, crush zombie hordes — offline gear defense TD!
Place gears. Merge weapons. Crush zombies. Gear Defense is a merge tower defense game where gears power your weapons. Drop gears onto the grid, connect them to activate turrets, and merge matching gears to evolve your arsenal into devastating firepower. Miniguns, flamethrowers, rocket launchers, snipers, shockwave blasters — all driven by spinning gears. ⚙️ GEAR-POWERED WEAPONS No ordinary tower defense. Your turrets only activate when gears connect. Build gear chains, optimize your grid layout, and rearrange between waves to maximize damage output. Every gear placement matters. 🧟 SURVIVE ENDLESS ZOMBIE WAVES Zombie hordes, mutant rushes, and boss attacks hit harder every round. Merge your gears fast enough or get overrun. 🔫 EPIC MERGE WEAPONS Miniguns, flamethrowers, rocket launchers, snipers, shockwave blasters, and more. Merge gears, upgrade weapons, and unleash bullet hell against the horde. 🛡 KEY FEATURES - Gear-powered merge tower defense — build and merge gear chains - Endless zombie survival waves with bosses - Free offline play — no WiFi needed - Warrior upgrades, loot bags, RPG skills - Bullet hell action with satisfying weapon effects Gear Defense is all about gears, merging, and survival. Merge weapons, defend your base, and prove your gear machine can outlast the horde.
1 year on Google Play
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