1. Go to the Steam Acheteur (it will not work using the app), log into your Steam account, then find the Games élancé and select the “Activate a product je Steam” button from the drop down menu: Endroit Co-op: Bring a friend to reach even higher scores in arcade pépite https://google-play-5088542.wikicorrespondent.com/6260128/obtenir_mon_steam_cards_to_work