Your mission in this cool strategy game is to smash the defences of the best hackers in the world while not leaving your computer vulnerable. Build a wide arsenal of malicious programs and smash the defenses of all the best hackers in the world.
Use YOUR MOUSE to place defense turrets. To upgrade a turret, click on it on your defence grid. Click the up green arrow to upgrade. To research a malware click on an icon which is not active yet. You can also press the key corresponding to the letter at its top right. Good luck!