Castle Merge Defense

Stack your heroes into the castle wall and hold the line.

Castle Merge Defense is a merge-and-defend strategy game. Every round you draw a handful of heroes, drag them into the castle's grid, and merge matching heroes to push them up a level. Then the gate opens and the undead come.

MERGE TO GET STRONGER
Two identical heroes become one stronger hero. Warriors, archers, mages, musketeers and more — each has its own range, attack speed and target priority, so where you place them matters as much as what you place.

BUILD THE WALL THAT FITS THE WAVE
The castle grid is small and every cell counts. Short-range warriors up front, archers where they can cover the gate, support units tucked behind. Reposition between waves as the enemy mix changes.

A NEW POWER EVERY LEVEL
Level up mid-battle and pick one of three special effects — extra damage to normal enemies, bonus damage against bosses, faster attacks, and more. No two runs build the same way.

ENDLESS WAVES, REAL PRESSURE
Skeletons, zombies, orcs and flying bats keep coming, wave after wave, with bosses waiting at the end. Your castle has one health bar. When it's gone, the run is over.

COLLECT AND UPGRADE
Unlock new heroes, star them up with shards, and upgrade your castle between runs so the next attempt goes deeper than the last.

PLAY ANYWHERE
Fully offline. No account, no login, no internet connection required. Everything in the game is unlocked through play.

Drag. Merge. Hold the castle.