Old School RuneScape Wiki

The Chasm of Fire is a dungeon located in the north-west corner of the Shayzien House, housing a variety of demons. All of the demons can only be killed while on a slayer task.

A dwarf multicannon can be used in the chasm.

At the bottom floor are several burnt bone and fire rune spawns.


There are several ways to access the dungeon:

The entrance to the Chasm.

Chasm of Fire dungeon map.png



Monsters found in the Chasm of Fire include:

Monster Image Combat level Slayer level Slayer XP Quantity
Lesser demon Lesser demon.png 82 1 79 9
Greater demon Greater demon.png 92 1 87 17
Black demon Black demon.png 172 1 157 17


The hidden level within the Chasm of Fire, appearing to spell out "CHASM OF FIRE".

  • Via use of the oculus orb, it was discovered that there is a hidden level beneath the bottom level. This level is currently inaccessible. When asked about this, Mod West stated "Figured I'd leave the bottom floor available, y'know, just in case."[1]
  • The bottom floor houses Yama, and may be used for a demi-boss similar to Obor. Mod West hinted at this by replying ";)" to a reddit comment asking about it, implying that such an idea is in the works.[2]