OSRS Yama Calculator

How Yama's loot is rolled

Yama rolls loot for each player on their own, in order, and stops at the first success. A 1 in 120 roll gives a unique: a piece of oathplate armour three times in five and the soulflame horn twice. If that misses, a 1 in 12 roll gives a dossier, then a 1 in 30 roll a forgotten lockbox, then a 1 in 15 roll 12 oathplate shards, and only then the standard table. Yami (1 in 2,500) and an elite clue (1 in 30) are rolled on top. In a duo the unique and dossier rolls shrink with your share, so a 50% share makes the unique roll 1 in 240.

What a dossier holds

A dossier opens into one of these. The rite of vile transference, which upgrades Death Charge, is certain from the first dossier you open after 100 kills, and once you have it its slot gives 15 to 18 chasm teleport scrolls instead.

What a forgotten lockbox holds

A lockbox is another way to an oathplate piece, three times in 403, and otherwise gives shards, dragon darts or bolts, dragon platelegs or a skirt, or 233,333 coins.

The contracts

A contract makes the fight harder for a set reward. Every contract but Familiar Acquisition skips the standard table, though the unique, dossier, lockbox and shard rolls still happen. The reward goes to whoever showed Yama the contract. 100 noted pineapple pizzas start the same fight as the catalyst, worm and shard contracts, for standard loot, and are not handed back.

Yama questions

Is a duo worse for uniques? Not for the pair. Each of you rolls with your own share, so two players at 50% have a 1 in 240 chance each, the same 1 in 120 between them as a player alone, and two uniques can drop from one kill. The pet and the elite clue do not shrink with your share.

How many shards make a piece? 450 oathplate shards and 2,520 crushed infernal shale make one piece at 83 Smithing, and a piece breaks down at the Ancient Forge for 50 shards.

What does dying cost? Your grave is by the Voice of Yama, and the fee is a quarter of the usual until you have 10 kills. The Death's Coffer calculator works out the fees. For Yami against every other pet, the pet calculator has them side by side, and the dry calculator has every other boss.

What changes in Deadman Mode? On the permanent Deadman world each combat bracket doubles the chance of Yama's uniques, the soulflame horn and the three oathplate pieces; a charged trinket of fortuity adds one more time the normal rate. A piece from a forgotten lockbox comes as often as before. Yama, at combat 1,238, can also drop charms (never while your PvP protection lasts), a tier 5 archaic emblem 1 time in 300, and a supply drop about 1 kill in 75, counted here as half each in a duo, and an accumulation charm in your inventory triples the elite clue chance. Pick Deadman Mode under "Where you play" to count them.