
Gone but certainly not forgotten. The GM Aerotrain addon pack takes you back to the streamline era when this stylish train toured the railroads of the USA as a proposed means to the future of passenger haulage.
Complete checkout — your code lands in your inbox in ~30 seconds, and is always available under Orders in your Gameplug account.
In the desktop client: top-left menu "Games" → "Activate a Product on Steam…" (or use the web link below).
Paste the key (format XXXXX-XXXXX-XXXXX) and accept the Steam Subscriber Agreement.
The game joins your library permanently — install it on any machine you sign in to.
Code not working? Contact support — confirmed-invalid codes are replaced or refunded.