Nidhoggr's Nest

 is a dungeon instance that takes players into the nest of the great dragon Nidhoggr. The quest Guardian of Yggdrasil is required to enter the instance.

On iRO, this instance is localized as Nidhoggur's Nest.

NPCs
Enemies Bosses
 * 12 Nidhoggr's Guardian
 * Nidhoggr's Shadow

Walkthrough
Time Limit: 2.5 hours

With 2 or more people in your Party, the party leader must speak with the Yggdrasil Gatekeeper at (nyd_dun02 99, 199) and "Accept Admission". After the dungeon is created, speak to the Yggdrasil Gatekeeper again to enter the dungeon.
 * NOTE: If you get disconnected at anytime after going to the 2nd floor, you will be unable to re-enter the instance until the cool down has expired.

Speak to the Murdered Yggdrasilid near the center of the main room. (213,277)

Kill 12 monsters named "Nidhoggur's Guardian".

Work your way through a short maze. At the end of the maze, you will warp to the boss room. Once the party leader steps forward Nidhoggr's Shadow will spawn at the center of the room.

Approximately every 3 min while fighting Nidhoggr's Shadow, the entire party will be warped to 1 of 4 side rooms. They will receive several Status Effects that last for 30 seconds and ignore all resistances/immunities. 3 Ryncho and 2 Phylla will spawn in the side room with the party, they must be defeated before the party can leave the room. Note: The monsters are able to leave the room before the party can, which makes them impossible to be killed. Be sure not to let this happen.
 * Southwest (red) room: HP-75%, Bleeding Ailment (icon does not show)
 * Northwest (blue) room: HP-50%, Frozen Ailment
 * Southeast (yellow) room: SP-50%, Sleep and Chaos Ailments
 * Northeast (green) room: HP-25%(?), SP-50%, Poison Aliment

Patches

 * Patch (2018 Aug. 08)
 * The image of the Nidhoggr's Nest area cannot be confirmed.
 * Patch (2015 Apr. 01)
 * Unusually displayed Memorial Dungeon  Mini-Map is no longer shown
 * Patch (2009 Jul. 08)
 * Fixed an entry error in the Memorial Dungeon Nidhoggr's Nest.
 * Patch (2009 Jan. 14)
 * Memorial Dungeon "Nidhoggr's Nest" Corrected an issue with the entry quest not progressing under some conditions.
 * [[File:RO-minilogo.png]] Episode 13.2 (2008 Dec. 17)
 * The Nidhoggr's Nest Dungeon is added. The Nidhoggr Dungeon consists of a regular dungeon and a memorial dungeon.