Nightmare · Tier 1

Furious Feruk

Furious Feruk is a Nightmare boss fought in Dranactus Underkeep, with 10 levels from 1,000 to 1,600 recommended combat power. Attempts: 14 a week (2 a day, holds up to 14).

Monster page: skills, variants and drops

A mutated Varg that has grown immensely in both size and ferocity. Portions of its body have mineralized into armor-like plating, making it even more formidable. Any lingering trace of its humanity has long since vanished, leaving it a mindless, uncontrollable beast incapable of communication. It tears through its foes with massive, mineralized claws.

Levels and rewards

Repeat clears pay by the grade of the clear: the amounts run from the lowest grade to the highest (BossChallengeReward).

Level	Combat power	First clear	Repeat clear
1	1,000	Phantasmal Fragment×500	Phantasmal Fragment×100–250
2	1,050	Phantasmal Fragment×540	Phantasmal Fragment×110–270
3	1,100	Phantasmal Fragment×580	Phantasmal Fragment×120–290
4	1,150	Phantasmal Fragment×620	Phantasmal Fragment×125–310
5	1,200	Phantasmal Fragment×660	Phantasmal Fragment×135–330
6	1,250	Phantasmal Fragment×720	Phantasmal Fragment×145–355
7	1,300	Phantasmal Fragment×760	Phantasmal Fragment×150–375
8	1,400	Phantasmal Fragment×800	Phantasmal Fragment×160–395
9	1,500	Phantasmal Fragment×840	Phantasmal Fragment×170–420
10	1,600	Phantasmal Fragment×900	Phantasmal Fragment×180–445

Data: client 2.0.6.0 (Steam build 25767555, 2026-10-07).