Brimstone Bombs is an unlockable passive item in The Binding of Isaac, added in the Repentance DLC.

+5 Bombs.

Makes Isaac's bombs fire 4 Brimstone lasers in the cardinal directions upon exploding.

Each laser deals 8 damage per tick (120 per second) and can hit enemies up to 19 times.

Has a 1% chance of being dropped upon defeating The Fallen.

This page shows the latest information as of the new Repentance+ (Online Co-op) DLC.
To see information about this item for the previous Repentance version, check this page instead.

Break Hornfel's minecart and kill him before he escapes.

Brimstone Bombs can be found in the following item pools:

The following tags are applied to this item:

The following special synergies and interactions for Brimstone Bombs have been documented.

* Note that not all possible synergies and interactions are listed here.

Below is the Internal Item Description as shown in-game.
Note that some stat changes are not displayed here. Please see the main description for the full effects.

Brimstone Bombs

• Isaac's bomb explosions launch a Brimstone beam in all 4 cardinal directions
• Abyss: x1 explosive Brimstone locust 1x Isaac's damage

• Check out the item description on the external Isaac Wiki.