WASD = move Left mouse butto = shoot Right mouse butto = iro sight Mouse wheel or 1-6 = chage weapos Space = jump

Prepare to defend yourself. Purchase defensive structures, recharge your energy and fight off waves of monsters. Kill bosses and upgrade weapons. Complete the final day and close the portals!

For iOS:
Safari on iOS 8 and later supports WebGL 1.0, and on iOS 15 and later supports WebGL 2.0.

For Android：
Nearly all of them support WebGL