DLC's at the start aren't really manditory. i would sugest playing the game. he DLC's are more cherry on top. there is one DLC that actually alters more in game with the extra companion. the other ones are either lose campaigns as a sdestory of chapter one with a different character or act 5 content (r even after act 5)
@@SushidozanLIVE yep it's that long ;P and you will have 7 or more new characters at the point your first character reaches it cause the interesting branching paths