Towers can be built at any point in a Mission, whether at the start or in the middle of a wave. Tap on an empty Tower Plot to open the Build Tower Menu. You can pick from one of four base Towers to build on each plot.

• Bow
  
  • An Elven Tower that will rain arrows down on nearby creeps.
• Cannon
  • A Human Tower that uses large cannons to deal damage over a large area.
• Infantry
  • Positions Dwarf troops on the battlefield to stall the creep advance.
• Magic
  • Magical crystals will shoot raw energy at creeps, ignoring armor.

Building Towers costs Elixir and each Tower has a different cost. Be strategic with your Elixir and which Towers you build.