There is no functional way to generate a new activation code for Manhunt 2 . The digital distribution channels are closed to new purchases. The only functional "codes" that exist are legacy keys already owned by original purchasers. The search for these codes online typically leads to security hazards rather than functional software.
It is a common misconception that "activation codes" for delisted games can be generated by third-party tools. This report clarifies why this is generally not possible for Manhunt 2 : manhunt 2 activation code
The request for a "Manhunt 2 activation code" highlights the issue of "Abandonware" and digital ownership rights. There is no functional way to generate a