Diablo 4: Vessel of Hatred is starting to look a lot like a budding MMO—or something closer to Destiny 2 at least—with the Dark Citadel, an endgame four-player co-op dungeon with weekly rewards.
Announced during an Xbox stream at Gamescom, the Dark Citadel is a multi-part dungeon with obstacles that require at least two players to clear. In the developer insights video, we saw characters opening doors for each other and taking turns reflecting attacks back at a boss. And just like in World of Warcraft, you'll be able to mark enemies with symbols to coordinate with your team.