To access the dungeon you need to go to Niflheim southwest of the center (niflheim 149/121)Paste Ingame. At least level 200 to enter the Banquet Hall of the Dead on the first floor and level 240 to enter the Collapsed Opera House on the second floor.

More info to come when found.
Complete this side quest first to unlock dailies.

1. Go to Eden and to the left, talk to Old Scholar (moc_para01 14/19)Paste Ingame several times until he tells you to go to Nifflheim.
2. In Nifflheim south area, talk to Haggard Spirit (niflheim 164/102)Paste Ingame.
3. You have 6 available quest to help you level up faster. First three for 200+ and the other three for 240+
   • Deceptively Cute Look
   • Not a Musical Instrument
   • Piano Play
   • Those with Unkempt Hair
   • Those with Dolls
   • Wake Them Up
4. You may return to Old Scholar in Eden to finish the side quest.

Nifflheim Dungeon
Requirements
Base Level:	200
Hunting:	15 Ghost Quve 15 Lude Gals
Quest Prerequisite(s):	Side quest above
Rewards
Base Experience:	15,642,570 Base EXP
Job Experience:	10,949,790 Job EXP

You are requested to hunt 15 Ghost Quve and 15 Lude Gals.

Nifflheim Dungeon
Requirements
Base Level:	200
Hunting:	10 Brutal Murderer 10 Gan Ceann
Quest Prerequisite(s):	Side quest above
Rewards
Base Experience:	10,756,120 Base EXP
Job Experience:	7,541,880 Job EXP

You are requested to hunt 10 Brutal Murderer and 10 Gan Ceann.

Nifflheim Dungeon
Requirements
Base Level:	200
Quest Prerequisite(s):	Side quest above
Rewards
Base Experience:	10,000,000 Base EXP
Job Experience:	7,500,000 Job EXP

You are requested to talk to the piano npc in the dungeon (nif_dun01 140/202)Paste Ingame.

Nifflheim Dungeon
Requirements
Base Level:	240
Quest Prerequisite(s):	Side quest above
Rewards
Base Experience:	??? Base EXP
Job Experience:	??? Job EXP

1. Talk to Haggard Spirit (niflheim 164/102)Paste Ingame, do what's asked, then come back.
   • ???

Nifflheim Dungeon
Requirements
Base Level:	240
Quest Prerequisite(s):	Side quest above
Rewards
Base Experience:	??? Base EXP
Job Experience:	??? Job EXP

1. Talk to Haggard Spirit (niflheim 164/102)Paste Ingame, do what's asked, then come back.
   • ???

Nifflheim Dungeon
Requirements
Base Level:	240
Quest Prerequisite(s):	Side quest above
Rewards
Base Experience:	??? Base EXP
Job Experience:	??? Job EXP

1. Talk to Haggard Spirit (niflheim 164/102)Paste Ingame, do what's asked, then come back.
   • ???

The list of monsters for each floor in the dungeon.

Image	Name	Level	HP	Def	Mdef	Base Exp	Job Exp	100% HIT	95% Flee	Size	Element	Race	Spawn
	Ghost Cube	213	4,439,942	482	114	??	??	??	??	Small	Undead 1	Undead	nif_dun01
	Lude Gal	213	4,439,942	410	105	??	??	??	??	Small	Undead 2	Undead	nif_dun01
	Brutal Murderer	214	4,960,787	470	80	??	??	??	??	Large	Neutral 2	Demi-Human	nif_dun01
	Gan Ceann	215	4,681,632	380	99	??	??	??	??	Medium	Neutral 1	Formless	nif_dun01

Image	Name	Level	HP	Def	Mdef	Base Exp	Job Exp	100% HIT	95% Flee	Size	Element	Race	Spawn
	Grote	253	9,929,035	456	117	??	??	??	??	Large	Earth 2	Demon	nif_dun02
	Disguiser	254	8,965,513	542	168	??	??	??	??	Medium	Undead 2	Demon	nif_dun02
	Blue Moon Loli Ruri	255	9,301,992	457	191	??	??	??	??	Large	Water 3	Demon	nif_dun02
	Pierrotzoist	255	9,701,992	541	134	??	??	??	??	Medium	Shadow 2	Demon	nif_dun02
	Death Witch	255	398,856,250	687	210	??	??	??	??	Medium	Shadow 2	Demi-Human	nif_dun02

• Abyss Glast Heim
• Magma Dungeon F3 (Nogg Road F3)
• Einbech Dungeon 3
• Ancient Odin's Temple (Odin's Temple F4)
• Abyss Lake Dungeon F4
• Laboratory Waste Disposal Plant Rudus Floor 4
• Abandoned Lab Amicitia