Scapewatch Atlas

Items and economy

Treasure chests

A completed treasure scroll becomes a chest of the same tier. Opening it pays Discover XP and several loot rolls, each of which can also hit tools, unlocks and specials; gear rolls once per chest.

See it on the systems map

Rules and numbers

  1. confirmed A chest makes ceil((T+1)/2) loot rolls: 1 at T0 up to 6 at T10.lootRolls = CEILING((T+1)/2)
    Source: Constants.js:961; Constants.js:2104
  2. inferred Each loot roll picks 1 of 10 material types at equal weight, 5-20 of it; each Looter's Sack adds +10% quantity (11 sacks, +110%).qty = RANDBETWEEN(5,20) * (1 + 0.10*sacks)
    Source: Constants.js:1116-1118; Constants.js:2145
  3. confirmed Per loot roll, a D1 tool hits at 1/(300-20T) and a D2 tool at 1/(1500-100T); a hit grants a random unowned tool of that line (lantern at half weight).D1 = 1/(300-20*T); D2 = 1/(1500-100*T)
    Source: Constants.js:2115
  4. confirmed Tier-matched Compass, Coin Purse, Looter's Sack and Wayfarer's Wrap roll at 1/(100+50T) per loot roll.1/(100+50*T)
    Source: Constants.js:2122; ItemSlotRenderer.js:799
  5. confirmed The Extender and The Reducer roll at the D1 rate per loot roll, awarding the lowest unowned tier capped by chest tier (T0-1 gives T1 ... T10 gives C6).capIndex = MIN(5, FLOOR(T/2))
    Source: Constants.js:5627-5632
  6. confirmed Each gear piece in the chest's pool rolls once per chest (not per loot roll) at 1/150 (T0) up to 1/15,000 (T10).CHEST_GEAR_ONE_IN = [150,150,300,300,450,450,750,1000,1875,3750,15000]
    Source: Constants.js:2443
  7. inferred Opening a chest pays (T+1)*250 Discover XP.chestXP = (T+1)*250
    Source: Constants.js:1035; main.js:2091
  8. dev note A Potion of Discovery adds 0/1/2 extra loot rolls per chest (T2/T5/T8) without spending a charge.
    Source: Constants.js:1578-1582
  9. confirmed One Open takes at most 50 chests; chest item value is 100*(T+1) gold.value = 100*(T+1)
    Source: Constants.js:1045; items.json
  10. dev note T1-T5 skilling tools no longer drop from chests; they come from slay mobs only.
    Source: ItemSlotRenderer.js:832

Connected systems

Arrows show who acts on whom: → this system acts on the other, ← the other acts on this one, ↔ both do.

Related pages

Guides: Tools: what they do and which to get · Collection logging: what pays and where to start

More in Items and economy

Almanacs · Bard · Barter · Brewing · Collection log · Discover · Food healing · Gems · God and Chaos raws · Gold and item values · Mob drops · Plunder · Skills overview · Total level · 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.