Limbo

Limbo is a sub-area of Necropolis. It has one purpose, the Limbo Keeper resides there.

In order to see the Limbo Keeper, you need to go 23 spots in a row without being kicked out to the Town Fountain. The chance currently to get teleported to the fountain is 4% per spot for an overall percentage of 40% if you do not currently have a Phylactery in your possession.

Once you do, the chance goes down to 2% per step for getting kicked out (62% chance).

The drop rate starts at 100%, and goes down 5% for every Phylactery in your inventory.

The Limbo Keeper is no longer considered a boss, and can be killed by anyone at anytime who finds it.