Traditional Tower defense featuring towers of 2 categories with 4 each, Standard and Special Towers. Place down towers to shoot at Erossite drones, stop them from reaching the end of the track or you lose health. Earn money by destroying drones, finishing waves, or extracting it. Use money to buy more towers.
Use a ability to your advantage. Dig destroys all towers and gives money back but at a fee. EMP destroys all drones on screen and deals massive damage to bosses.
Equip flash drives to gain a advantage against Erossite. Collect them by passing Wave 15, 30, and 40, or if you lose you get a flash drive to help you out.
To progress and unlock more maps, complete a Radar Calibration Puzzle. Scan for matching colors on a radar to fix all the panels. Don't choose the wrong ones or an error occurs.