Dear adventurers!
Due to the numerous issues that players encounter when trying to create a co-op session, we'd like to clarify the Friend's Pass mechanics.
Please, DO NOT try to invite your friend to your game via Steam invitations, if they don't own the full game and use Friend's Pass version. Just send them a room code that you'll get after creating a game session, and you'll be good to go!
We hope that your adventures will be the most enjoyable!