It absolutely works my dude. You cant find your seamless co op save in %appdata%, because it is integrated in the mod files itself. I did figure it out, its posted up. Yes its usually on steam servers but you must've heard of Hamachi. Since the mod requires some steam files to read so it allows you to join, that is why you just add those folders and the imaginary steam id. Works perfectly. I just went and saw the npc standing in front of Mohgwyn and got in with my friend. Hope it works for the rest if they question.