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 Challengers Pack DLC for Assetto Corsa Competizione adds 5 brand new vehicles to the main game, including the all-new Audi R8 LMS GT3 evo II, which is set to be driven by former motorbike champion Valentino Rossi during the 2022 season of the real-life Fanatec GT World Challenge Europe Powered by AWS championship. The DLC also includes 4 additional race cars, which run in single-make series and can be found on the grids of some of the most important GT competitions around the world. Audi R8 LMS GT3 EVO II BMW M2 CS Racing Ferrari 488 GT3 Challenge Evo Lamborghini Huracan Super Trofeo EVO 2 Porsche 911 GT3 Cup (Type 992) These cars also come with new outstanding liveries and custom livery schemes ready to be used by every racer of Assetto Corsa Competizione.