Scapewatch Atlas

Combat and raids

Corruption

A chance on slay-task kills for the mob to rise again as a stronger corrupted version. Re-killing it pays extra Slay and Spirit XP and extra loot rolls.

See it on the systems map

Rules and numbers

  1. confirmed Base chance is 1% per slay-task-matching kill in solo combat.SLAY_CORRUPTION_CHANCE = 0.01
    Source: Constants.js:4982-4990
  2. dev note The corrupted mob comes back in place with +25% stats and a doubled first letter (FFeeble).
    Source: Constants.js:4983-4985
  3. dev note The corrupting kill gets its own loot roll, and the re-kill pays 5x Slay and Spirit XP plus 2 loot rolls: 3 rolls in all, or 6 on a Chaos task.rolls = (1 + 2) * (chaosTask ? 2 : 1); reKillXP = 5 * base
    Source: Constants.js:4986-4989; LoginScreen.js:290 (patch note)
  4. confirmed Each owned Corruptor's Idol (Fortress rare, 7 tiers) adds +1%, for up to +7%; this applies to solo slay only.CORRUPTORS_IDOL_CHANCE_PER = 0.01
    Source: Constants.js:4991-4994; items.json (corruptors_idol_*)
  5. confirmed The Delve tree's Corruption cluster adds up to +5%, and each slate (Ancient, Chaos) adds +1%.
    Source: raid-trees.json (delve.corruption total 5); Constants.js:2203, 2231
  6. inferred Varyndra doubles the total of base, idols and Delve tree; it is not stated whether the slate bonus is inside that doubling.max = 2 * (1 + 7 + 5) + 2 = 28% if slates are not doubled, 30% if they are
    Source: Constants.js:4996-5004
  7. confirmed Dungeon corrupted waves are fixed (x1.25 outer, x1.50 centre) and are not affected by idols.
    Source: raids.json (_comment); Constants.js:4993

Connected systems

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

Related pages

Guide: Collection logging: what pays and where to start

More in Combat and raids

Ancient and Chaos shards and slates · Chaos Dungeon · Combat · Combat styles and Life/Spirit · Death · Delve (combat raid skill and tree) · Dungeons (tiered raids) · Fortify talent tree · Fortress (skilling raid) · Fortress Ledgers and Banners · Fortress rares · Raid wave respawn · Slay masters · Slay tasks

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.