The protection on the PC version of The Chronicles of Riddick: Assault on Dark Athena is an activation system with online authentication required the first time you install the game on a machine. The activation code lets you install the game on up to 3 machines, with an unlimited number of installs on each assuming that you don’t change any major hardware in your PC or re-install your operating system. If you reach the maximum number of installations you can contact the Atari hotline and if it’s a legitimate request you can get a new activation code. We implement this protection in an effort to avoid early piracy.