The tall and sinister Maltheal is still an angel at heart, which means he wants to rid the world of demons. Unfortunately, he considers humanity to be demonspawn, and lays waste to the city of Westmarch to raise an army from the dead. That’s where the new expansion will be set. It’s dark, gothic, and wreathed in fog. It feels like a conscious move back to the grimmer locales of Diablo 1 and 2. Blizzard promise that its environments and dungeons will feature more randomisation to encourage re-runs, and you can move in and out of its underground sections seamlessly. No more glowing yellow doorways and loading screens.