The Treasure room is a room in Player-owned house that can be used to contain a reward for players who reach it and kill the guardian. It can only be built underground and requires level 75 Construction and 250,000.
There are 5 hotspots available:
Players have to pick the lock (using Thieving) or force the lock (using Strength) to open dungeon doors. Higher level doors are more difficult to open.
The guardian monster has to be killed before a player can get the treasure.
Level
|
Guard
|
Combat level
|
Experience
|
Cost
|
75
|
 |
Demon
|
82
|
707
|
500,000
|
80
|
 |
Kalphite soldier
|
85
|
866
|
750,000
|
85
|
 |
Tok-Xil
|
135
|
2,236
|
5,000,000
|
90
|
 |
Dagannoth
|
135
|
2,738
|
7,500,000
|
95
|
 |
Steel dragon
|
246
|
3,162
|
10,000,000
|
99 [1]
|
 |
Rune dragon
|
380
|
5,000
|
25,000,000
|
The treasure can only be opened once the guardian has been killed, and can store a maximum of 1,500. In addition, house owners must wait five minutes between adding treasure to their chest.
If players have more than one treasure chest, then they act as one; adding coins to one fills them both, and opening either one gives access to the full treasure.
- ^ Cost changes depending on the type of nails used.