In the latest Diablo 4 Pre-launch Developer Update, Blizzard provided more details about the newest timed-dungeon coming to Diablo 4 in Vessel of Hatred – the Kurast Undercity.
Diablo 4: Vessel of Hatred Developer Livestream Summary
A new feature coming in Diablo 4: Vessel of Hatred, the Kurast Undercity is a multi-floor timed Dungeon where defeating enemies increases the rewards and grants time bonuses. This new piece of content is recommended for players who are making their way to 60.