This is a very addictive strategy game where you plan out a maze of turrets to shoot the hordes of enemies that go acrossed the screen. If 20 enemies get past you, you lose. Make sure to upgrade your towers to max and make a long maze for the enemies to go through.

Use the mouse for basic controlsKey Shortcuts1-6 - tower keyss - sell toweru - upgrade towern - send next level (be careful)shift - hold shift to place multiple towers