In case you don't visit the game page...

Controls

Building phase:

• A,W,S,D to pan the camera
• Q,E to rotate the camera
• RMB to zoom out
• 1 - 5 to select the defense structure
• R to rotate the selected structure
• TAB to go to Fighting mode

Fighting phase:

• A,W,S,D to move
• Mouse to aim
• Left click to shoot
• Space to jump
• TAB to go to Building mode