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 player defeats an Elite, one friendly is spawned at that location. Up to 4 (+4 per stack) can be spawned at once. After 60 seconds, the Construct will despawn.

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 in where multiple technicians injure themselves (or come close) while attempting to study the items, such as hand injury, electrocution , and siphoning.