Volatile Sludge is a crafting resource in Horizon Forbidden West. It is used to craft advanced and elite ammunition and traps.
Item Description: A thick, toxic goo scraped from inside a machine’s carcass.
Volatile Sludge Location:
- Bought from some late-game Hunter Merchants, for example the one in Thornmarsh.
- Dropped by any Apex machine variant, these spawn mostly at night. You can rest at a Shelter time to night.
- 100% Drop Chance from Rockbreaker, you could farm this machine over and over again on Story difficulty to get it quickly.
- From tearing off some machine parts. For example, tearing off Bellowback Refining Sac (big container on its back) has a 100% drop chance.
- Sometimes found in Resource Chests (random).