🏰 Tower Defense

Crystal Mech Bay

Defend a glittering crystal sanctum from the rogue robot legion — free, no download.

How to play

  • Select a turret and tap a build slot around the central core to mount it.
  • Turrets auto-rotate and fire at the nearest threat closing on the core.
  • Press Send Next Wave (or Space) — the rogue robot legion pours in from every edge.
  • Ring the core with splash and slow turrets to cover all approach angles.

Why you'll play it

  • Four upgradeable crystal-themed towers, each with a distinct role: rapid fire, splash, slow and long-range beam.
  • A handcrafted all-directions core map with escalating waves and a boss every five rounds.
  • Earn-and-spend gold economy with wave-clear bonuses and in-place tower upgrades.
  • Smooth canvas gameplay with 2× fast-forward, pause and instant restart.

Ready to defend?

Build, upgrade and survive every wave.

▶ Play Crystal Mech Bay