Outlands NATO alliance attempted a brute force at what is easily the most hardcore dungeon in UO history on the best MMO available today, UO Outlands! Here are the results for historic and documentation purposes.
Time Dungeon has elements of survival/extraction while being comparable to a hardcore D&D dungeon such as Tomb of Horrors. In this video we did a nearly 3 hour dungeon run and didn't even get close to half way through the dungeon before wiping.