Halcyon Seed

The Halcyon Seed is a boss item in Risk of Rain 2, dropped by defeating at Gilded Coast.

Upon beginning a Teleporter Event, the player will lose their Halcyon Seed and Aurelionite will appear and fight alongside the player. When the Teleporter Event is finished, Aurelionite will die. The player will be given back their Halcyon Seed when Aurelionite dies, whether naturally or if killed by other means. In multiplayer, players who die after Aurelionite is summoned will still recover their Halcyon Seeds when Aurelionite dies.

This item stacks based on the total amount held by all players combined (items held by  do not count), similarly to the. Aurelionite's damage is increased by 50%, and its health by 100%, for each Seed held by the party after the first.

If the player is fighting the and is in phase 4, Aurelionite will spawn and help the player.

Version History

 * Anniversary Update
 * Gameplay Changes
 * Changed summoned pre-stack scaling from current-difficulty-based hp + damage bonuses to leveling up to the ambient level like other summoned characters
 * Summoned Aurelionite attention span: 5s ⇒ 15s Developer Notes: Aurelionite’s raised attention span should make it less likely to get distracted by weaker monsters attacking it so it’s more likely to spend its time fighting stronger monsters.


 * Early Access Content Update 5
 * Major Content
 * Added New Item Lore Entry: