When The Phantom Pain launched in 2015, it utilized Denuvo, a robust anti-tamper technology that required online activation and was deeply integrated into the game's code. For the piracy community and digital preservationists, this created a barrier.

Beyond the technical battle of DRM, Metal Gear Solid V: The Phantom Pain is widely regarded as a flawed masterpiece.

: Some users argued that Denuvo impacted game performance and stability. The CPY "crack" was celebrated for removing these hurdles, allowing for an offline, fully functional version of Hideo Kojima's final Metal Gear project. The Game Behind the Code

: Before CPY, previous attempts to bypass the protection—most notably by the group 3DM—were notorious for requiring users to change their PC's time zone to China just to launch the game.