Any website or torrent claiming to offer a "PC Installer" or "Native PC Version" of Gran Turismo 6 is a scam.
: Use RPCS3 , the leading PlayStation 3 emulator for Windows and Linux.
installer found on torrent sites like Kickass is almost certainly Security Risk:
To play GT6 on PC, you must emulate the original PS3 hardware. This requires a powerful computer and the original game files.
