Chest (Barrows) (2024)

ClosedOpened

Chest
Released								9 May 2005 (Update)
Members								Yes
Quest								No
Location								Barrows crypt
Options								Open
Examine								A large stone chest.
Map
Advanced data
Object ID								20723

This is the chest located at the centre of the tunnels beneath the crypts of the Barrows brothers.

Looting the chest[edit | edit source]

Upon opening the chest, the Barrows brother whose crypt the player entered will appear and start attacking the player, if he did not already appear while travelling through the tunnels. It is not required to kill the Barrows brother in order to loot the chest. However, the chance of getting Barrows equipment from the chest increases as more brothers are killed, and players will not be able to receive equipment belonging to brothers they did not kill. Furthermore, it is required that you kill at least one enemy of any kind in order to be eligible for any possible loot from the chest.

If the player's inventory is full upon looting the chest, excess items will be dropped to the ground.

During the His Faithful Servants miniquest, players will also receive a strange icon.

Rewards[edit | edit source]

Drop rates estimated based on 128,000 samples from the Drop Rate Project, unless otherwise cited.

Note that the loot chances below are accurate for a Barrows run with all 6 brothers slain and with full potential (1012 points). To accurately calculate your specific situation, please make use of the Barrows calculator.

Pre-roll[edit | edit source]

Ahrim's[edit | edit source]

	Item	Quantity	Rarity	Price	High Alch
	Ahrim's hood	1	7 × 1/2,448	278,998	7,800
	Ahrim's robetop	1	7 × 1/2,448	4,388,510	30,000
	Ahrim's robeskirt	1	7 × 1/2,448	2,960,110	28,200
	Ahrim's staff	1	7 × 1/2,448	244,300	51,000

Dharok's[edit | edit source]

	Item	Quantity	Rarity	Price	High Alch
	Dharok's helm	1	7 × 1/2,448	410,444	61,800
	Dharok's platebody	1	7 × 1/2,448	693,094	168,000
	Dharok's platelegs	1	7 × 1/2,448	1,182,679	165,000
	Dharok's greataxe	1	7 × 1/2,448	2,066,138	124,800

Guthan's[edit | edit source]

	Item	Quantity	Rarity	Price	High Alch
	Guthan's helm	1	7 × 1/2,448	196,306	61,800
	Guthan's platebody	1	7 × 1/2,448	409,728	168,000
	Guthan's chainskirt	1	7 × 1/2,448	250,891	165,000
	Guthan's warspear	1	7 × 1/2,448	176,288	60,000

Karil's[edit | edit source]

	Item	Quantity	Rarity	Price	High Alch
	Karil's coif	1	7 × 1/2,448	57,611	7,800
	Karil's leathertop	1	7 × 1/2,448	1,746,113	30,000
	Karil's leatherskirt	1	7 × 1/2,448	881,002	28,200
	Karil's crossbow	1	7 × 1/2,448	119,801	96,000

Torag's[edit | edit source]

	Item	Quantity	Rarity	Price	High Alch
	Torag's helm	1	7 × 1/2,448	103,824	61,800
	Torag's platebody	1	7 × 1/2,448	244,516	168,000
	Torag's platelegs	1	7 × 1/2,448	245,942	165,000
	Torag's hammers	1	7 × 1/2,448	96,840	96,000

Verac's[edit | edit source]

	Item	Quantity	Rarity	Price	High Alch
	Verac's helm	1	7 × 1/2,448	104,849	61,800
	Verac's brassard	1	7 × 1/2,448	194,731	168,000
	Verac's plateskirt	1	7 × 1/2,448	236,641	165,000
	Verac's flail	1	7 × 1/2,448	99,608	96,000

Main table[edit | edit source]

Players who completed the hard Morytania Diary will receive 50% more runes. The base amount without the diary completed is listed below.

	Item	Quantity	Rarity	Price	High Alch
	Coins	2–774	7 × 379/1,012[d 1]	2–774	2–774
	Mind rune	253–336	7 × 125/1,012[d 2]	506–672	253–336
	Chaos rune	112–139	7 × 125/1,012[d 3]	11,536–14,317	6,048–7,506
	Death rune	70–83	7 × 125/1,012[d 4]	14,140–16,766	7,560–8,964
	Blood rune	37–43	7 × 125/1,012[d 5]	11,174–12,986	8,880–10,320
	Bolt rack	35–40	7 × 125/1,012[d 6]	1,960–2,240	1,050–1,200
	Loop half of key	1	7 × 3/1,012[d 7]	10,028	60
	Tooth half of key	1	7 × 3/1,012[d 7]	9,965	60
	Dragon med helm	1	7 × 1/1,012[d 8]	58,741	60,000

Tertiary[edit | edit source]

	Item	Quantity	Rarity	Price	High Alch
	Clue scroll (elite)	1	1/200–1/29[d 2][d 1]	Not sold	12

Reward mechanics[edit | edit source]

Number of rolls[edit | edit source]

• There is initially one roll at the drop table.
• Each additional brother killed grants an additional roll at the drop table, to a maximum of seven total rolls.

Chance of uniques[edit | edit source]

• Each brother killed has his associated items added to the possible rewards.
• First, the Barrows equipment is rolled against. The chance of getting a Barrows item is shown in fig.1. Or, in tabular format to the right.
• If the Barrows item chance is successfully hit, one of the available Barrows items is chosen at random - each part has equal chance, but once chosen it will not be chosen again on future rolls.

${\displaystyle \begin{array}{llll}P(N)& =\frac{1}{450-58\times N}& & (fig.1)\end{array}}$

Where P is the drop chance and N is the number of brothers killed.

Chance of other items[edit | edit source]

• If the Barrows item chance is not met, an additional measure called reward potential is calculated as shown below.
  • In short, reward potential is the sum of all the combat levels of the monsters killed, capped at 1000 — including the brothers (all six have a combat sum of 656). The number of brothers killed times two is then added, giving a total maximum reward potential of 1012.
• A roll is performed for a value between 1 and your reward potential (each inclusive). The result then determines what item is awarded, and in what quantity.

Let ${\displaystyle C_n}$ be the combat level of the ${\displaystyle n}$^th monster killed. Then, the reward potential ${\displaystyle R}$ is

${\displaystyle \begin{array}{ll}R& =S+2N\end{array}}$

where

${\displaystyle S\equiv \min [{\sum }_n{C}_n,1000]}$

and

${\displaystyle N\equiv \text{number of brothers killed.}}$

Notes[edit | edit source]

• The chance of receiving at least one piece of Barrows equipment is approximately 1/15.01^[a] if you kill all six brothers. This chance is unaffected by the rewards potential that is built by killing other monsters in the crypt. The chance of receiving a specific piece of equipment is approximately 1/350.14.^[b]
• As it is possible to receive more than one piece of Barrows equipment per chest, the average number of Barrows pieces per chest is 7/102 (~1/14.57).
• In order to receive a piece of Barrows equipment, the corresponding brother must be killed before the chest is looted. Thus, if you wanted a piece of Guthan's equipment, you would have to kill Guthan before you are eligible to obtain his equipment. Therefore, it is impossible to acquire Barrows equipment if no brothers are slain, although coins, runes, or bolt racks may still be awarded.
• For every brother killed, you get an extra roll for rewards; so if all six brothers are killed, it is possible to obtain up to seven pieces of Barrows equipment.
• It is possible to get multiple items from the same brother, but it is not possible to receive multiple copies of the same item.
• Killing all of the brothers is not required to receive loot; however, not killing all brothers decreases your chance of receiving a Barrows item.

Item	RP required to unlock	RP required for maximum quantity	Chance at max RP per roll
			Frac	%
Coins	1	380	380/1012	37.5%
Mind rune	381	505	125/1012	12.4%
Chaos rune	506	630	125/1012	12.4%
Death rune	631	755	125/1012	12.4%
Blood rune	756	880	125/1012	12.4%
Bolt rack	881	1005	125/1012	12.4%
Key half	1006	N/A (always 1)	6/1012	0.6%
Dragon med helm	1012	N/A (always 1)	1/1012	0.1%

Calculations[edit | edit source]

Here are some values expressing your chances of getting the items. These numbers assume you kill all the brothers each time.

Changes[edit | edit source]

Notes[edit | edit source]

References[edit | edit source]

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