OSRS Doom of Mokhaiotl Calculator
Your chance of the Eye of Ayak, Avernic treads, Mokhaiotl cloth and Dom at every Delve depth, the runs each takes and what a run is worth at live prices.
You claim the loot after this level. Levels past 8 are deep delves.
Your chance of each unique
Every level you clear rolls for the uniques, so a deeper run gives more chances.
| Unique | A run | On average | Half get it by | Worth | Adds to a run |
|---|
How long until it drops
Every depth, side by side
| Clear to | Minutes | A unique | Unique an hour | A run | An hour |
|---|
The loot from one run
| Item | On average | Each | Worth |
|---|---|---|---|
| A run |
What your completions should have given
Type the completions from the scoreboard in the Delve lobby, level by level, to see the uniques they add up to.
| Unique | Expected | At least one |
|---|
A run is every level from 1 to the depth you claim at. Each level rolls once for the uniques and once on the common table, and a level past 8 counts as a deep delve at level 9's rates. Die on the way down and the whole run's loot is lost, which these figures do not count. How the uniques share a level is not published. The chance of any unique at a level is taken as the three items' chances added together, which is how the wiki's own table adds them up. Loot is priced at what it sells for right now, after the 2% tax. The cloth cannot be traded, so it is worth confliction gauntlets less a tormented bracelet and the 10,000 demon tears the upgrade takes. Dom and elite clues are counted, not priced, and the potions and ammunition you use are not taken off. Minutes a run default to 10 for levels 1 to 8 and a minute and a half for each deeper level. Figures checked against the OSRS Wiki on 24 September 2026.
How the Doom of Mokhaiotl drops its uniques
Every delve level you clear rolls for a unique. The Mokhaiotl cloth can drop from level 2, the Eye of Ayak from level 3 and the Avernic treads from level 4, and each one gets likelier the deeper you go until level 9, where it stays at 1 in 540. Dom, the pet, drops from level 6 at 1 in 1,000 and reaches 1 in 250 from level 9.
| Level | Cloth | Eye | Treads | Any | Dom | Tears |
|---|---|---|---|---|---|---|
| 1 | – | – | – | – | – | – |
| 2 | 1/2,500 | – | – | 1/2,500 | – | – |
| 3 | 1/2,000 | 1/2,000 | – | 1/1,000 | – | 50 |
| 4 | 1/1,350 | 1/1,350 | 1/1,350 | 1/450 | – | 60 |
| 5 | 1/810 | 1/810 | 1/810 | 1/270 | – | 70 |
| 6 | 1/765 | 1/765 | 1/765 | 1/255 | 1/1,000 | 80 |
| 7 | 1/720 | 1/720 | 1/720 | 1/240 | 1/750 | 90 |
| 8 | 1/630 | 1/630 | 1/630 | 1/210 | 1/500 | 100 |
| 9+ | 1/540 | 1/540 | 1/540 | 1/180 | 1/250 | 100 |
Why a deeper run pays more
A run to level 8 has seven chances at the cloth and a combined chance of a unique of about 1 in 50. Every level past 8 adds another roll at the best rate, 1 in 180 for any unique, and the common loot grows too: each level gives 20% more than level 3 does from level 9 on, where level 1 gives half. Guaranteed demon tears start at 50 on level 3 and reach 100 a level from level 8.
Doom questions
Do I keep my loot if I die? No. Dying on a deeper level loses everything that run has built up, so the value of a deeper run is only real if you survive it.
Can I get two uniques in one run? Yes. Each level rolls on its own, so a long deep delve can give more than one, and the table above counts that.
How unlucky is a dry streak somewhere else? The dry calculator has every other boss, and the ToA calculator the Tombs of Amascut.
Update history
Every change to this calculator
- Calculator added