It was be so awesome if players could design their own dungeons.
Here is how I see this working:
On the side of a mountain or cliff, a player creates an “entrance” --a zone in. Passing that goes to a load screen. Players can then tunnel into the dungeon in any way they wish; makes passages that go left, right, up or down. Steps. Ramps. Rooms.
These dungeons could be equipped with pit traps, spike traps (“Stay out of the light”) or blade traps. Secret doors. Waterways.
Monsters! A designer could place all sorts of monsters in their dungeon. Dragons. Wraiths. Skeletons. Whatever.
And treasure! Chests with valuable loot and weapons or armor, made by players and left as rewards.
Maybe a “rescue the princess” feature. Maybe NPCs that ask riddles that open doors.
Players would advertise their dungeons in forums to encourage others to join their server. They could re-create famous dungeons from stories and legends (Mines of Moria, Tomb of Horrors, King Solomon’s Treasure Vaults.)
I like this idea!