Hi, unfortunately there are no plans to support Diablo 3. From what I've heard though it feels like this game was made for the controller, even though it's a pc port. That said, if you absolutely must use a mouse and keyboard you are free to use another games ST as a substitute. Since each games look mechanic is different you may find that one games ST works better than another. I recommend loading your XIM4 with several different games and flipping between them while moving your mouse to find the best feel. After that set your binds according to the button pictures, not the action names.