Jailer of Hope
Member
I'm not at home so I can't quite remember the name of the tab in the start menu, it's either a multiplayer or online tab, but go there and select co-op. Send out invites and at least one player has to queue up with you at this moment. Once someone does, return to the game and you should see a notification saying "press X to start co-op session" or something like that. You should be good to go and you can invite additional players from there. Keep in mind everyone needs to at least make it to the second Horizon festival to join. This is assuming it's the same as Xbox though.Is there an idiot's guide to playing co-op on PC? When my buddy and I try none of us get any kind of in-game notification about an invite and we can never join each other's session.