Classical tower defence puzzle game. Build a maze of turrets and upgrade them to stop the creep invasion!This version contains:4 unique turret types6 upgrade levels16 open maps in 2 independent levelpacksvariety of enemies organized in wavesSubmit your best results and compare them with other players! Submit button is located in the new game menu, while all the best scores are available in Extras.Game speed might be modified (menu button) if the standard speed is to slow.Maps are organised in 2 independent levelpacks. You don’t have to finish one levelpack to start the other.Please comment and rate the difficulty of each level – it will help us develop new balanced maps.