Once you log in, you should be taken to your User Dashboard. On the left side of your user dashboard is your Campaigns list. Locate the green "New Campaign" button in that panel. Enter a name and game system and click the blue "Create Campaign" button to finish. You will have the ability to edit additional campaign settings, including the subscription tier, once it is created. Your campaign will automatically start on the free tier.
If you are looking for more information, check out our guidebook!