Nuln Oil pairs with Hourglass to become Mordant Earth. Both the October community recipe table and the release-version table place this chain in both universes; the release table lists base-weapon level 8.
What Oiled does for your attacks
The official status-effects article says Oiled increases damage from fire-inflicting weapons. This gives Nuln Oil a specific synergy with Burning attacks. It does not mean any attack automatically sets enemies on fire, and it does not turn Hourglass into a fire weapon.
A useful planning sequence is to obtain the oil weapon, secure an actual source of fire damage and choose upgrades that preserve your ability to move. Burning enemies move faster according to the same official article, so a damage combination still needs room to avoid contact. The status reference separates these effects.
Prepare the evolution
Carry Hourglass and level Nuln Oil itself. An eligible chest can then produce Mordant Earth. The sources inspected here do not establish one guaranteed spawn time or a measured boss-damage multiplier. Use the companion lookup when the item name is easier to recognize than the weapon.
Paint-pot objectives changed
Steam hotfix v2.1.6 reduced the D6 Dice/Nuln Oil kill requirements associated with Reikland Fleshshade and Agrax Earthshade paint pots. The announcement does not give the new numeric thresholds. Check the patch and platform timing before relying on an old unlock counter guide.
Sources & version notes
Official announcements and dated community references are distinguished below. Exact unpublished values are not inferred.
- Auroch Digital — Feature Focus: Status Effects (2026-08-05)
- Unknown Traveller — October demo recipe table (original player report) (2026-10-07)
- Raison Detre — release-era weapon combinations (author notes ongoing investigation) (2026-11-11)
- Auroch Digital — Hotfix v2.1.6 (2026-11-11)
- Wikily — release-version weapon evolution table (checked 2026-11-12)
Compiled from public sources. We have not personally played or tested these procedures. Check your installed build and its tooltips when details differ.