Downloading software from unauthorized sites like "Apun Ka Games" presents serious risks, including malware infection and corrupt file archives, when attempting to acquire games like Prototype . Official, safe, and fully functional versions are available through verified, legitimate digital storefronts like Steam. For a secure experience, purchase the game at Steam . Prototype 2 on Steam Hard Disk Space: 10 GB. Prototype 2 on Steam Hard Disk Space: 10 GB.