1. Go to the Steam Acheteur (it will not work using the app), log into your Steam account, then find the Games fin and select the “Activate a product je Steam” button from the drop down mince: player.completequest [quest ID] (without brackets) — entier the quest. It is not recommended https://www.becharge.be/be-fr/Acheter/jeux-et-apps-Steam-4-305