Firing off miniguns, launching Hellfire missiles, dropping incinerating Hades-Bombs and colossal asteroids, deploying mighty railgun and acid towers and spawning your own Intrusion Counter Measures (ICMs) to reconquer corrupted databases and firewalls are just some of the actions you can take while fending off the creeps. Earn RAM and upgrade your arsenal and hardware-level. Start as an analog punch-tape system and evolve into a quantum A.I. mainframe.