Bomb
From Everafter Falls Wiki
Bomb is a tool that can be used for slaying monsters and destroying rocks in the dungeons.
The crafting recipe for Bombs is unlocked after completing Bram's quest An Explosive Item that becomes available after the player unlocks the second dungeon. After obtaining the recipe, Bomb can be crafted via the Crafting menu using the following:
Coal (10)
Rope (1)
Bombs can only be used inside the dungeons. When placed, a Bomb will explode with a short delay, damaging monsters and destroying any mineable rocks in a radius of three tiles around it. Rocks destroyed by a Bomb will turn into their regular drops.