Mouse: Click on Spell Buttons to Select them, Drag Gems to Move, Throw, or Combine them.
1-6 or B/T/C/M/W/G = Select Spells
CTRL (Hold) = Create/Combine Gems
Shift (Hold) = Place Multiple Towers/Trenches OR Create Multiple Gems
P = Pause
Left-Click, Spacebar, or Enter = Close Tutorial Panels
Havoc and corruption swarm through the land, and you are one of those few wizards who can put an end to it. Create and combine magic gems, put them into your towers and banish the monsters back to hell!