Merge Elemental Defense
Keep the crystal standing through the wave campaign. Matching elementals evolve into stronger defenders, while spell timing matters when the board alone cannot stop a rush.
Play Merge Elemental Defense →Tower Defense games
3 playable games
Build before the attack, then inspect whether your formation holds. These games manage different resources: a merge board, powered ship modules or a castle with permanent progression.
Choose by the way you want to play
- Place and merge defenders before launching a crystal-defense wave.
- Check spaceship module direction, power and shield coverage.
- Inspect the crown-reset preview in Idle Castle Defense.
Start here
Merge Spaceship Defense
Build a ship from modules, connect useful power and protection, then survive the alien wave campaign. Module direction affects what it can cover.
Play Merge Spaceship Defense →Idle Castle Defense
Keep monsters away from the castle while improving archers, towers and heroes. The crown reset trades a run for permanent progression rather than preserving every upgrade.
Play Idle Castle Defense →All games in this collection
Merge Elemental Defense
Summon elementals, merge matching pairs to evolve them, and defend the crystal through 15 waves and a colossal Golem.
Idle Castle Defense
Archers, heroes and towers hold your watercolor castle against endless monster waves — upgrade, pass the crown for permanent gems, and earn gold even while you're away.
Merge Spaceship Defense
Merge and rotate spaceship modules, manage power and shields, and survive ten alien waves plus a three-attack boss.