was originally released for the PlayStation 3, Xbox 360, and PSP, it is not officially available as a standalone digital purchase with a license key for modern PCs (Windows).
As a result, "license keys" for Tekken 6 are generally not a standard requirement for legitimate play today. The Truth About "License Keys" Tekken 6 License Key
, the license is linked to your account. You can redownload it from your library as long as you are logged in. Backward Compatibility was originally released for the PlayStation 3, Xbox