The ".zip" extension indicates that the game's core files, including the "crack" (the modified executable that bypasses Digital Rights Management or DRM), have been compressed for easier sharing. These files are typically moved via BitTorrent protocols, where users download bits of the file from each other simultaneously. This decentralized method makes the distribution difficult to take down but also introduces significant security concerns for the end-user.
: The Dead Island franchise is developed by Techland and Deep Silver. Piracy bypasses the financial support intended for the developers, which can impact the future of the series and the livelihood of the creators. Dead.Island.Definitive.Collection-P2P.zip
The Digital Underworld: Understanding "P2P" Software Releases Dead.Island.Definitive.Collection-P2P.zip