Defense Nucleus

The  is a boss item in Risk of Rain 2, dropped by the, added in the Survivors of the Void expansion.

Whenever the holder defeats an Elite monster, one friendly is spawned at that location, with greatly increased stats. Up to 4 (+4 per stack) can be spawned at once.

Version History

 * Survivors of the Void
 * (Undocumented) Added New Item: Defense Nucleus

Trivia

 * This item's logbook entry references a pattern in most boss item logbook entries where multiple technicians injure themselves (or come close) while attempting to study the items, such as hand injury, electrocution , and siphoning.