Assetto Corsa Competizione Game Keys

Go to: http://store.steampowered.com/ and download STEAM client
Click "Install Steam" (from the upper right corner)
Install and start application, login with your Account name and Password (create one if you don't have).
Please follow these instructions to activate a new retail purchase on Steam:
Launch Steam and log into your Steam account.
Click the Games Menu.
Choose Activate a Product on Steam...
Follow the onscreen instructions to complete the process.
After successful code verification go to the "LIBRARY" tab and start downloading.

The BRITISH GT PACK DLC brings all the action of the 2019 British GT Championship by SRO Motorsports Group to Assetto Corsa Competizione. This new DLC pack features three of the most iconic racetracks from the UK: Donington Park Circuit Oulton Park Circuit Snetterton Circuit Furthermore, the BRITISH GT PACK DLC adds more than 40 new liveries and 70 drivers from the 2019 season, together with a dedicated Championship season. The British GT season is accessible for all players of Assetto Corsa Competizione with base content, and with the corresponding game update (v1. 7), all players can now enjoy mixed-class races under the British GT season selection. The three new British tracks and the ability to select GT4 cars is exclusive to owning the BRITISH GT Pack and the GT4 European Series DLC, respectively. However, players who do not yet own the GT4 European Series and the BRITISH GT DLC packs can still enjoy mixed-class races on all base content tracks and race with GT4 opponents on the same track.