This encouraged a lot more cooperative gameplay initially, but as the game aged, gameplay also declined over time. Ladder characters are not allowed to interact with non-ladder characters and vice-versa. In order to play and get your name on the ladder, you would have to create a new character from scratch and would not have the aid of any characters that were non-ladder. In Diablo II, Ladders were introduced in Patch 1.10. The Ladder is a competitive type of closed realm Multiplayer, hosted on.