Don't let the creeps complete their path. Do that by building defense towers along the way. Manage and upgrade them to get to higher levels. You have 6 types of towers to choose from once you have enough gold.
A unique tower defense genre with role-playing elements and an isometric engine, along with more advanced tactical decision making, multiple maps and even the ability to play custom maps designed by other players.
Build lasers, artillery, missiles, slow fields, shock generators and blade launchers to stop wave after wave of creeps, now with 4 maps, and 5 difficulty levels.