Bomb Ingrediants were sacks of substances that, when used with a workshop bench, can be formed into a makeshift bomb.
Appearanace[]
They appeared in Alone in the Dark: Illumination, and item ingredients first appeared in Dark Crypt. A workbench near the groundkeeper's cabin was needed to make bombs. The Bombs were used to topple the mysterious obelisks with glowing red runes in order to become a bridge to get to the other side of the chasm. it appeared again in Silent Quarry, where it was made into a bomb to destroy the malfunctioning door to the Mining tower.
They also appeared in Moonlight Trailer Park, where it can be obtained and made into a bomb by using the workbench in the radio hut. This bomb can be use to blow up the obstacle in the road, which needed to be demolished in order to use the car to escape.