Items and economy

Mob drops

Every solo-combat encounter has a weighted common loot table and a list of 1-in-N rare drops. Rares roll on slay-task kills, and all combat now runs through slay tasks, so every kill rolls them.

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Rules and numbers

1. confirmed mobs.json defines 80 mob types and 74 encounters; each encounter has a weighted lootTable (one entry with itemId null is the 'nothing' share) and a rareDrops list of oneInChance entries.commonChance = weight / SUM(weights)
   Source: mobs.json; CombatEncounterModal.js:1413
2. confirmed Rare drops only roll while the encounter is your active slay task; off-task they show as locked.
   Source: CombatEncounterModal.js:1434; LoginScreen.js:823 (patch note)
3. observed All combat now happens on slay tasks, so in practice every kill is a task kill. The total kills of a task show when you hover it.
   Source: player report, 2026-10-03
4. confirmed Rares roll per loot roll, and the game counts loot rolls per mob: Collections shows them for each mob, and a slay task's tooltip shows 'Collection: owned/total · N loot rolls'.
   Source: game.js (collections_header, slay task tooltip)
5. dev note Some kills pay more than one loot roll: the kill that corrupts a mob pays its own roll and the corrupted re-kill pays 2, and Chaos encounters double their loot rolls.
   Source: Constants.js:4984-5003
6. dev note On a matching slay task, common drops pay 2x quantity.
   Source: CombatEncounterModal.js:1562
7. confirmed Tools, Spirit Conduits, amulets, rings and capes drop once per mob; gems, gear, ammo and resource 'lotto' rares roll fresh every kill.
   Source: CombatEncounterModal.js:1460
8. confirmed Gem rates by mob tier: Feeble 1/500, Dire 1/1,000, Savage 1/1,500, Fell 1/2,000, Ancient 1/2,500, Chaos 1/5,000.
   Source: mobs.json
9. confirmed Skilling tools drop from slay mobs at 1/100 (T1), 1/250 (T2), 1/500 (T3), 1/2,500 (T4), 1/5,000 (T5) and 1/10,000 (Chaos).
   Source: mobs.json; Constants.js:2237
10. confirmed Resource lotto rares pay 100 of a tier-matched raw or processed resource at 1/500 (fish: 50 raw or 25 cooked).
    Source: mobs.json
11. confirmed Each Ancient and Chaos mob drops its own shard at 1/10,000; owning all 6 Ancient or all 12 Chaos shards grants the matching Slate.
    Source: Constants.js:2191; Constants.js:2222
12. dev note A slay-task kill has a 1% corruption chance; the corrupted re-kill gives 2x loot rolls plus the base kill's own roll (3 total), and a Chaos master task doubles loot rolls (6).corruptChance = 0.01 + 0.01*idols (+slates, x2 on Chaos task)
    Source: Constants.js:4982-4990; Constants.js:5004
13. confirmed Chaos-tier encounters (slay 100+) also require skill levels or total level, e.g. Chaos Furious Slime needs 2,700 total level.
    Source: mobs.json; Constants.js:2240

More in Items and economy

Almanacs · Bard · Barter · Brewing · Collection log · Discover · Food healing · Gems · God and Chaos raws · Gold and item values · Plunder · Skills overview · Total level · Treasure chests · Treasure scrolls

Statuses: confirmed is a value or rule in the game files; observed is measured from recorded play; dev note comes from a developer comment, tooltip or patch note; inferred is worked out from the files with the assumption stated; unknown is decided on the server. Game data read 2026-10-03.