Chest (Tombs of Amascut)

ClosedOpened

Chest
Released								24 August 2022 (Update)
Members								Yes
Quest								No
Location								Osmumten's burial chamber
League region								Desert✓
Options								Open
Examine								What could be inside?
Map
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Advanced data
Object ID								41696,44786

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SMW Subobject for OpenedLeague Region: desertImage: File:Chest (Tombs of Amascut, open).pngUses infobox: SceneryObject ID: 44787, 44788, 44789, 44790, 44791, 44792Release date: 24 August 2022Is members only: trueIs variant of: Chest (Tombs of Amascut)

SMW Subobject for ClosedLeague Region: desertImage: File:Chest (Tombs of Amascut, closed).pngUses infobox: SceneryObject ID: 41696, 44786Release date: 24 August 2022Is members only: trueIs variant of: Chest (Tombs of Amascut)

The chest is found in Osmumten's burial chamber in the Tombs of Amascut raid, and can be searched for rewards after defeating Tumeken's Warden and Elidinis' Warden.

The rewards from the chest vary; like the Chambers of Xeric chest and the Monumental chest from the Theatre of Blood, the rewards inside are based on performance in the raid. In addition to performance, better rewards can be generally obtained with a higher raid level.

If the player leaves the raid without claiming the loot from the chest, they can reclaim them by opening the Rewards Niche in the south-eastern corner of the lobby.

Loot mechanics

Rewards are determined by a point system. Players receive room points in each room of the raid (capped at 20,000 room points), which are then added to their total reward points (capped at 64,000 total points) upon room completion. The point system works as follows:

• Players start the raid with 5,000 total reward points.
• Room points are awarded per damage dealt to every NPC in the raid. For most NPCs, 1 damage dealt equates to 1 room point. Some NPCs give bonus points while some NPCs give no points, as shown below:

NPC	Multiplier
Warden's Core	0x
Apmeken's Path baboons	1.2x
Ba-Ba	2x
Zebak	1.5x
Kephri's scarabs	0.5x
Het's Seal	2.5x
Obelisk	1.5x
Wardens (P2)	2x
Wardens (P3)	2.5x

• If a player scores the most room points in their party for a room, they will be given an MVP bonus of $300\times {\text{TeamSize}}$ to their total points upon room completion.
• If a player dies, they will lose 20% of their total reward points, with a minimum of 1,000 points.
• At the end of the raid, the starting 5,000 points are subtracted when calculating loot and purple percentage.

Uniques

Players will have a 1% chance to receive a unique item for every $10,500-20\left(X+{\frac {Y}{3}}\right)$ total reward points, where $X$ is the sum of raid levels from 1 to 400, and $Y$ is the sum of raid levels from 401 to 550. Although the unique drop chances are effectively capped at raid level 550, raid levels above that do slightly improve drop rates due to the enemies having more health, provided that the player(s) can complete the raid at that level.

For example, at raid level 430, players will have a 1% chance for every $10,500-20\left(400+{\frac {30}{3}}\right)=2,300$ points earned.

If a unique item is rolled, Osmumten's sarcophagi will glow purple rather than white, and the player who receives the item will have their corresponding chest emptied, as the common drop rolls are not made for them. Upon interacting with the sarcophagus, a short cutscene will play where it is opened before revealing the drop.

If a player successfully rolls for a unique that is outside its associated raid level - indicated by the greyed out unique item icons in the Invocation menu during raid setup - then the game performs an additional 1/50 roll. If this roll succeeds, the raid level restriction is ignored and the player receives the item. If it fails, an untradeable tertiary item is received instead.

For players raiding with other players, the total points of the entire group are used to determine which player will receive a unique, with the % chance being directly equivalent to the % points the player contributed to the total. In case a player disconnects or leaves the raid before it is completed, their points will still be counted when the overall unique chance for the group is determined.

Similarly to the ancient chest from the Chambers of Xeric, the unique drop rate is capped, with a maximum rate of 55% to see a unique at the end of the raid. Excess points will not contribute towards a second roll, however.

Common rewards

If the player does not receive a unique reward from the raid, then their corresponding chest will be sealed. A key-shaped icon will appear by the chest indicating which one the player can open. Three rolls are also made on the common drop table. The quantity of the items from the three rolls appears to use the following formula,

${\text{ItemQty}}={\begin{cases}{\frac {\text{Points}}{\text{ItemDivisor}}}&{\text{if Invocation}}<300\\{\frac {\text{Points}}{\text{ItemDivisor}}}\cdot (1.15+0.01\cdot \lfloor {\frac {{\text{Invocation}}-300}{5}}\rfloor )&{\text{if Invocation}}\geq 300\end{cases}}$

where X is the total amount of reward points earned from the raid (which is hidden from the player), and the item divisor's value depending on the item rewarded in the following way:

Reward		Divisor value
	Coins	1
	Death rune	20
	Soul rune	40
	Gold ore	90
	Dragon dart tip	100
	Mahogany logs	180
	Sapphire	200
	Emerald	250
	Gold bar	250
	Potato cactus	250
	Raw shark	250
	Ruby	300
	Diamond	400
	Raw manta ray	450
	Cactus spine	600
	Dragonstone	600
	Battlestaff	1,100
	Coconut milk	1,100
	Lily of the sands	1,100
File:Toadflax seed.png	Toadflax seed	1,400
File:Ranarr seed.png	Ranarr seed	1,800
File:Torstol seed.png	Torstol seed	2,200
File:Snapdragon seed.png	Snapdragon seed	2,200
	Dragon med helm	4,000
File:Magic seed.png	Magic seed	6,500
	Blood essence	7,500

Tertiary rewards

The chance of receiving a thread of Elidinis or one of the three keris partisan jewels is determined by a base rate that linearly interpolates to three times their base rate depending on kill count. The base rate for the thread is 1/10, and the base rate for a specific jewel is 1/180, or 1/60 for any jewel.

At 0 kill count, the chance of receiving one of these items is their base drop rate, each raid completed without receiving one of these uniques will increase their drop rate until it is received. Specifically, a kill count equivalent to 1.5x their base drop rate denominator will make the chances three times as likely. For example, at 0 kill count, players will have a 1/10 chance to receive the thread of Elidinis. However, at 15 kill count, they will have a 3/10 chance instead. Likewise, the drop rate for any remaining jewel scales from 1/60 up to 3/60, (or 1/20), after reaching a kill count of 270.

Players cannot receive duplicate jewels until all of the jewels are first obtained, as long as the player either has the jewel or the partisan in their possession.

The pet, Tumeken's guardian, is determined similarly to uniques but with different base values. Players will have a 1% chance to receive the pet for every $350,000-700\left(X+{\frac {Y}{3}}\right)$ total reward points, where $X$ is the number of raid levels less than or equal to 400, and $Y$ is the number of raid levels from 400 to 550. Raid levels above 550 do not contribute to increasing pet chance, effectively capping pet drop chances at raid level 550.

---

Bugs:

Rather than reverting to the base rate of 1/10, the drop rate of the thread of Elidinis is set to 1/50 after one has been received for the first time.

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Challenge rewards

Meeting certain challenge requirements will always give the player the corresponding reward, detailed below.

Each of these challenges includes the requirement that there are zero deaths for all party members. The game will check the player's inventory, worn equipment and bank to see if the base or modified item is in their possession; if it does, then the roll is canceled. If it is not, then the game will generate one for the player; as such, the drop trick can be used to obtain multiple items.

Only one pet transmog can be obtained per person, per raid. If the requirements for multiple remnants are met, the following order of priority determines which one is awarded: Akkha, Zebak, Ba-Ba, Kephri, Ancient.

Reward		Raid level	Other requirements
	Masori crafting kit	350+	N/A
	Menaphite ornament kit	425+	N/A
	Remnant of akkha	450+	All Akkha invocations and level 4 Akkha
	Remnant of ba-ba	450+	All Ba-ba invocations and level 4 Ba-ba
	Remnant of kephri	450+	All Kephri invocations and level 4 Kephri
	Remnant of zebak	450+	All Zebak invocations and level 4 Zebak
	Ancient remnant	450+	All Wardens invocations
	Cursed phalanx	500+	N/A

Loot table

Pre-roll

If dung is received, no common rewards are given.

	Item	Quantity	Rarity	Price	High Alch
	Fossilised dung	1	Always	Not sold	N/A

Uniques

The chance of getting a unique depends on how much the player has contributed to the raid and also on the raid level. If one of these items is received, no common rewards are given. Tertiary rewards are still obtainable.

Once the game has chosen whether to give a unique item, an item is chosen from the table below with the following probabilities.

	Item	Quantity	Rarity	Price	High Alch
	Osmumten's fang	1	7/24	12,475,873	1
	Tumeken's shadow (uncharged)	1	1/24	1,196,689,251	1
	Elidinis' ward	1	3/24	4,122,606	1
	Lightbearer	1	7/24	1,631,168	1
	Masori mask	1	2/24	8,560,940	1
	Masori body	1	2/24	67,575,413	1
	Masori chaps	1	2/24	49,967,783	1

Common rewards

The rewards are shared across any raid level, but higher raid levels and optimal performance provide higher quantities.

	Item	Quantity	Rarity	Price	High Alch
	Cache of runes	1	3 × 1/27	Not sold	N/A
	Coins	1,126–51,285	3 × 1/27	1,126–51,285	1,126–51,285
	Death rune	57–2,564	3 × 1/27	9,120–410,240	6,156–276,912
	Soul rune	28–1,282	3 × 1/27	4,844–221,786	5,040–230,760
	Gold ore	12–569 (noted)	3 × 1/27	1,884–89,333	1,080–51,210
	Dragon dart tip	11–512	3 × 1/27	34,793–1,619,456	1,650–76,800
	Mahogany logs	6–284 (noted)	3 × 1/27	3,162–149,668	180–8,520
	Sapphire	5–256 (noted)	3 × 1/27	1,180–60,416	750–38,400
	Emerald	4–205 (noted)	3 × 1/27	1,752–89,790	1,200–61,500
	Gold bar	4–205 (noted)	3 × 1/27	464–23,780	720–36,900
	Potato cactus	4–205 (noted)	3 × 1/27	136–6,970	0
	Raw shark	4–205 (noted)	3 × 1/27	2,492–127,715	408–20,910
	Ruby	3–170 (noted)	3 × 1/27	2,583–146,370	1,800–102,000
	Diamond	2–128 (noted)	3 × 1/27	3,526–225,664	2,400–153,600
	Raw manta ray	2–113 (noted)	3 × 1/27	3,632–205,208	240–13,560
	Cactus spine	1–85 (noted)	3 × 1/27	2,734–232,390	0
	Dragonstone	1–85 (noted)	3 × 1/27	11,580–984,300	6,000–510,000
	Battlestaff	1–46 (noted)	3 × 1/27	8,309–382,214	4,200–193,200
	Coconut milk	1–46 (noted)	3 × 1/27	160–7,360	1–46
	Lily of the sands	1–46 (noted)	3 × 1/27	1,964–90,344	1–46
Toadflax seed.png: Chest (Tombs of Amascut) drops Toadflax seed with rarity 3 × 1/27 in quantity 1-36	Toadflax seed	1–36	3 × 1/27	1,406–50,616	6–216
Ranarr seed.png: Chest (Tombs of Amascut) drops Ranarr seed with rarity 3 × 1/27 in quantity 1-28	Ranarr seed	1–28	3 × 1/27	27,298–764,344	30–840
Torstol seed.png: Chest (Tombs of Amascut) drops Torstol seed with rarity 3 × 1/27 in quantity 1-23	Torstol seed	1–23	3 × 1/27	6,381–146,763	42–966
Snapdragon seed.png: Chest (Tombs of Amascut) drops Snapdragon seed with rarity 3 × 1/27 in quantity 1-23	Snapdragon seed	1–23	3 × 1/27	41,659–958,157	36–828
	Dragon med helm	1–12 (noted)	3 × 1/27	59,006–708,072	60,000–720,000
Magic seed.png: Chest (Tombs of Amascut) drops Magic seed with rarity 3 × 1/27 in quantity 1-7	Magic seed	1–7	3 × 1/27	97,288–681,016	253–1,771
	Blood essence	1–6	3 × 1/27	77,633–465,798	60,000–360,000

Tertiary rewards

	Item	Quantity	Rarity	Price	High Alch
	Thread of elidinis	1	1/10–3/10; 1/50	Not sold	N/A
	Eye of the corruptor	1	1/180	Not sold	N/A
	Jewel of the sun	1	1/180	Not sold	N/A
	Breach of the scarab	1	1/180	Not sold	N/A
	Clue scroll (elite)	1	Varies	Not sold	12
	Tumeken's guardian	1	Varies	Not sold	N/A

Challenge rewards

The following items are a guaranteed drop, provided that the raid party meets the conditions to receive them.

	Item	Quantity	Rarity	Price	High Alch
	Cursed phalanx	1	Always	Not sold	N/A
	Masori crafting kit	1	Always	Not sold	N/A
	Menaphite ornament kit	1	Always	Not sold	N/A
	Remnant of akkha	1	Always	Not sold	N/A
	Remnant of ba-ba	1	Always	Not sold	N/A
	Remnant of kephri	1	Always	Not sold	N/A
	Remnant of zebak	1	Always	Not sold	N/A
	Ancient remnant	1	Always	Not sold	N/A