Delverium Smelly Gunk, Bone and Blood Sacs: Fertiliser Supply Routes

Updated October 4, 2026 · Delverium Guide

Collect Smelly Gunk from Zombies for basic Fertiliser; collect Bone from Skeletons and Blood Sacs from Blooderflies or Mosquitos for the enhanced recipe. Straw is harvested from grass. These enemy materials have separate sources and uses.

Early Access · community source snapshot; totals are recipe arithmetic, not tested drop rates

Choose the missing ingredient

The item entries identify enemies without giving a guaranteed quantity per kill. A source name is not a spawn coordinate.

Plan an enhanced batch

For ten Enhanced Fertilisers, the recipe arithmetic is 10 Bone, 10 Blood Sacs and 10 basic Fertilisers. Crafting those ten basic units adds 10 Smelly Gunk and 10 Straw. Reserve the basic units for the upgrade instead of applying them to crops first.

Avoid spending a shared component twice

Bone also appears in Skeleton Key and Impact Potion recipes in its item entry. If either is your next goal, separate that reserve from the fertiliser bill. Return to the application guide once you have ingredients; collection, crafting and applying the consumable to a growing crop are three different steps.