Fuel Array

The Fuel Array is a single-use equipment in Risk of Rain 2, added in the Scorched Acres Update.

The Fuel Array can only be obtained during the first stage, by interacting with a hatch on the back of the escape pod that the player spawns from.

Activating the Fuel Array starts a short timer; when the countdown ends, it triggers an explosion that deals damage equal to 150% of the player's max health to themself, and 300% of their max health to enemies in a 30 meter radius. This self-damage can be reduced with armor, allowing to easily survive by activating  or. Furthermore, invincibility frames (such as from ) will block the self-damage entirely.

Additionally, if the player ever falls below 50% of their max HP, the Fuel Array automatically activates.

Interacting with in the Abyssal Depths with a Fuel Array equipped will clear the Power Plant challenge, unlocking REX as a playable Survivor. This will also remove the Fuel Array from the player's inventory.