: Type your 4x4 or 5x5 alphanumeric code exactly as it appears in your purchase email or inside the DVD case.
: Enter your serial key in the prompt that appears when you first run the game while connected to the internet. mount and blade with fire and sword 1138 serial key install
: If you've lost your serial key and cannot find it, contact the game's support team or the platform (like Steam or GOG) where you purchased the game. They can help you recover your key or provide guidance. : Type your 4x4 or 5x5 alphanumeric code