The HalluciGen gas grenade is a weapon in Fallout 4.

Characteristics[edit | edit source]

After throwing and detonating, the Hallucigen gas grenade will emit a green gas that distorts vision. It will cause NPCs to frenzy and begin to attack each other, regardless of whether or not they are attacking their own allies.

Production[edit | edit source]

Can be crafted at a Chemistry station using:

This crafting recipe will only appear with a HalluciGen gas canister in the inventory. One does not need the Demolition Expert perk to make these.

Locations[edit | edit source]

HalluciGen gas grenades are not randomly generated as loot. Instead, the HalluciGen gas canisters the Sole Survivor needs to craft at a chemistry station can only be found at HalluciGen, Inc., and are at a finite number of nine.

Notes[edit | edit source]

Some enemies are unaffected by the gas, as the game will indicate with a "<Name> is too powerful for this effect" notification.

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