Brimstone is a rare alchemy material in Crimson Desert found at sulfur pools in the Hexe Sanctuary. It can be farmed by killing disguised abyss creatures or blocking gas vents with Nature's Snare. Key ingredient in Gold Bar and Platinum crafting.
Brimstone is a rare alchemy material in Crimson Desert, highly valued for its use in gunpowder production and alchemical recipes. Its high concentration of sulfurous fumes makes both mining and transport dangerous. Brimstone is found at sulfur pools in the Hexe Sanctuary area, and even locating the deposit is a challenge in itself.
Where to Find
Brimstone is gathered from sulfur pools and gas vents in the Hexe Sanctuary area of the Hernand region. Look for areas that resemble sulfur pools with vents of gas releasing from the ground. The springs are also visited during the main quest Pursuit Beyond the Veil, where you must destroy totems at the site. Be aware that depending on your story progress, the area may be populated with enemies.
Hidden abyss creatures disguise themselves as rocks near the sulfur pools. They reveal themselves when approached and spew water. Attack them with moves like Turning Slash and Forward Slash to defeat them quickly. Each creature drops approximately 2 Brimstone. After clearing the area, fast travel to a nearby point and return to respawn the creatures. This method is simple and repeatable.
This method uses the Nature's Snare ability and yields more Brimstone per cycle (roughly 4 to 5 extra) but requires more setup:
Switch your Nature's Snare ability to the healing version by clicking in the thumbstick. The standard version will not work for this technique.
Charge and aim your Force Palm at each gas vent to block it. A small palm leaf icon will appear on the vent when it is successfully sealed, and gas will stop coming out.
After blocking all surrounding vents, use Nature's Snare on the final remaining vent.
This triggers a much larger release of gas from that vent. Wait for the gas cloud to settle.
A bright glowing orb will appear in the vent. Unleash your ability on the orb to convert it into Brimstone, yielding 4 to 5 pieces.
Method 3: Deadfire Mountain Gas Vent Route
A refined version of the vent blocking strategy uses a different region and clarifies which ability does the blocking. The best open-world brimstone route runs along the strip of land between Deadfire Mountain and Hexe Sanctuary, north of the city of Demeniss. The area is dotted with sulfur pools and large rocks that each sprout two or three noxious-gas air vents. The fumes reset every time you fast travel away and return, so the whole route can be repeated indefinitely.
Prerequisite: Brimstone Gas Mask
Before attempting this route, equip the Brimstone Gas Mask. The mask grants immunity to the brimstone gas damage around sulfur pools, which otherwise ticks your health down every few seconds. The headgear is found on a wooden log to the right of a small shack in northern Demeniss, near the entrance to the farming area. Without it you can still run the route, but you will burn through food and bandages much faster.
Step by Step
Each rock in the area is worked the same way. The trick is that the vent blocking is done with Healing Force Palm, not with the Nature's Snare skill itself. Healing Force Palm is the triggered, L3-activated version of Force Palm (press the appropriate trigger button while Force Palm is charging to switch it to the healing variant). Once a vent is hit with a Healing Force Palm strike, a small palm leaf icon appears on top of it and the gas stops venting.
Walk up to a gas-vent rock and count the active vents. Most rocks have two or three vents pushing out noxious gas.
Charge Force Palm, trigger it into Healing Force Palm with L3 (or the keyboard and mouse equivalent), and aim the strike at one of the vents. The vent seals under a palm leaf icon.
Repeat the sealing step for every vent on the rock except one. With all but one vent blocked, the pressure builds up and the remaining vent visibly expels gas at higher speed.
Enter Nature's Snare by holding Focus and rotating the right trigger. The snare animation pulls the accumulated brimstone out of the final vent in one go, giving the full yield from that rock in a single action.
Move to the next rock and repeat. Clear every vent-rock in the area before fast travelling away, then return to reset the fumes.
Stone Crabs in the Same Area
The rock constructs roaming between the brimstone pools also drop brimstone when defeated, roughly the equivalent of a single vent's yield each. These stone crabs have thick mineral shells, which is why most melee attacks bounce off them. The fastest way to break them is to throw a Force Bomb, which shatters the shell in one hit and exposes the soft body for a quick follow-up. Working the crabs into the vent route adds a noticeable chunk of extra brimstone per loop without any extra travel.
Why Bother with This Method
Brimstone is one of the main bottlenecks for crafting Gold Bars and other high-value alchemy outputs, and it shows up repeatedly in late-game recipes. A single loop of the Deadfire Mountain vent route (all rocks plus stone crabs) produces far more brimstone than killing scattered abyss creatures at Hexe Sanctuary, so if you plan on mass-producing gold bars or pushing high-tier alchemy, this is the route to run.
Uses
Brimstone is a key ingredient in several valuable alchemy recipes: