Brimstone

Lore & Background

Brimstone is a fragment of the infernal fires that burn in the deepest pits of Sheol, a place where the damned scream and the air itself weeps molten tar. In *The Binding of Isaac*, it embodies the raw, corrosive power of sin and damnation—a tool of vengeance for a child who has been pushed too far. Its appearance—a dark, pulsing orb that hisses like a living thing, crackling with red energy that leaves scorch marks on the floor—suggests a pact with darker forces, a willingness to embrace the very evil that haunts Isaac's nightmares. Touching it feels less like picking up an item and more like signing a contract in blood.

In Their Own Story

The room was dark, save for the faint glow of a red candle flickering on an altar. Isaac reached out, his small hand trembling, and touched the orb. Instantly, a searing heat surged through his arm, and his vision blurred. When he opened his eyes, a beam of crimson light erupted from his chest, carving a path through the stone wall ahead. The monsters that had been chasing him were nothing but ash. He felt powerful, but also afraid—this was not a gift from heaven.

Reader's Guide

Brimstone replaces Isaac's normal tears with a charged attack. To use it, hold down the fire button to charge, then release to unleash a wide, piercing beam that travels the entire length of the room. The beam deals damage multiple times per second to any enemy it touches, making it excellent for clearing rooms quickly and hitting multiple targets at once. It also destroys obstacles like rocks and fires, and can hit enemies behind cover. Because it requires charging, timing is crucial—you're vulnerable while charging, and the beam has a brief cooldown after firing. It synergizes well with items that increase damage, range, or shot speed, and can be combined with other tear modifiers for devastating effects. Brimstone is typically found in Devil Rooms, reflecting its demonic nature, and is a staple for any run aiming for high damage output.

Did You Know?

• Brimstone's beam can be reflected by certain enemies, such as the Brimstone Head, turning it against you.
• In the original Flash version, Brimstone was one of the few items that could instantly kill the final boss, Mom's Heart, with a single charged shot.
• The item's design is inspired by the biblical concept of brimstone as a symbol of divine punishment and hellfire.
• Brimstone's beam can be combined with the 'Technology' item to create a laser that also has the piercing properties of brimstone.