: Assistance with a specific error message related to a "product key" or "serial number" during installation.

: Sites like G2A or Eneba occasionally have "Global" Steam keys in stock. While these are often Windows-centric, many old Steam keys for DiRT 2 are platform-agnostic if the Steam version includes the Mac port.

Ported by Feral Interactive in 2011, this physical release included a unique product key required for installation.