Start your own cult in a land of false prophets, venturing out into diverse and mysterious regions to build a loyal community of woodland Followers and spread your Word to become the one true cult. [How to Activate your Steam Key] Please follow these instructions to activate a new retail purchase on Steam: 1. Launch the Steam client software and log into your Steam account. 2. Click the Games menu option at the top of the Steam client. 3. Choose Activate a Product on Steam... 4. Follow the onscreen instructions to complete the process.