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The Last Room

A level 150 party run under Underground Tunnel: follow Verity into a sealed lab, clear waves of machine parts, then beat T_W_O, a 48-million-HP machine that was once part of her.

Updated 11 October 2026instancebossMVPpartyLv150officialstory
Memorial dungeon
A door blocked from the inside, and a machine that does not know who it is.
Mark finds a door in the tunnel that was blocked from the far side. Behind it is a lab that is still running, full of machines that treat everyone as an intruder, and Verity, who has been hearing a sound in her head ever since the group went underground.

How to go

  1. Talk to Mark. You need to be level 150 or more and in a party.
  2. The leader picks "Open door." Then everyone picks "Go in." A map announcement says which party member went in.
Going in sets the quest Final Room, which ends at the next 04:00 server time. While it runs Mark says you look tired and should rest a day. When it ends, talk to him once ("I can't believe you want to enter a place like this again...") and you can go back. A second quest, also called Final Room, only records that you killed T_W_O.

Run

Room 1: the headache

You arrive at (145, 35) with Tamarin, Du and Verity. The south door at (140, 45) throws you back to (142, 30) until the next step is done.
  1. The party leader talks to Verity. She feels something wrong, her head splits, she wants to go back, then says she will catch up. Tamarin stays with her and tells you to go on. (Anyone else is told Verity wants to talk to the leader.)
  2. Walk through the south door at (140, 45). The room goes quiet, then the creaking starts. Ten seconds later a voice says "Intruder detected. Sealing off entrance and eliminating intruder according to designated protocols." One
    System message
    appears in the big room (area 30,33 to 70,73), together with a wave of 24 machines.

Waves of machines

Each wave is 24 machine parts, 12 of each kind, spread over four areas of the map:
MonsterLevelHPBase EXPJob EXPDrops
Machine Component
149217,6506,5985,931Burnt Part 10 %, Solid Iron Piece 15 %, Used Iron Plate 20 %, Large Iron Scrap 0.5 %, Old Fuel Tank 0.5 %, GC109 Card 0.01 %
Machine Component
153245,6707,2557,011Burnt Part 10 %, Solid Iron Piece 15 %, Used Iron Plate 20 %, Large Iron Scrap 0.5 %, Old Fuel Tank 0.5 %, DR815 Card 0.01 %
System message
16010000Nothing. It heals any friend below 50 % HP (Heal level 11)
The first wave comes 10 seconds after the voice. If the machines are not all dead, a second wave comes 5 minutes later and a third 5 minutes after that. When the last one falls the voice says "First protocol failed. Commencing next protocol." and Tamarin appears at (67, 97). So a team that clears the first wave quickly never sees the others.

Zone 2: Tamarin and the traps

The leader talks to Tamarin. She is out of breath: Verity ran off so fast she could not follow. The map says "An unidentified object is moving fast from Zone 1 to Zone 2" and "Commencing emergency protocol". She tells you the only way is up. A warp at (100, 121) opens to (145, 107).
Fifteen cracks in the floor, from (157, 94) to (201, 60), each trigger once when you step on them: the voice says "Intruder detected in Zone 2" and three machine parts appear in the area (178 to 198, 34 to 54). Odd-numbered cracks bring
Machine Component
, even-numbered ones
Machine Component
. Fifteen cracks make 45 monsters in all.
Verity stands at (224, 29). She says her head is splitting, and a sound is coming from the door. Pick Go inside and you are warped to (240, 255). Picking "Quit" only makes her say "Go back...we have to go back...".

The last room: T_W_O

Talk to Verity at (242, 253). She says "Finally... We came back...", vanishes, and the fight starts for everybody.
T_W_O appears in the room (area 235,255 to 255,275): level 165, Demon, Dark, 48,000,000 HP, MVP, no experience. It talks to itself through map lines ("Have to go back... This place isn't it...", "Who am I? Why am I here?", "There is nothing left...").
  • Skills: Piercing Attack, Silence Attack and Critical Wound on its target; Wide Stone, Wide Sleep and Wide Soul Drain around itself.
  • System damage. At 30, 90, 150 and 210 seconds the room announces "System damage occurred", and four
    System message
    appear each time (16 in total). They cast Heal on allies below 50 % HP, the boss included.
When T_W_O dies the room kills the rest, announces "All protocols failed. Locking down area excluding threat element.", and Verity comes back at (242, 253). Talk to her and you are sent to the Underground Bunker (299, 162).

Boss drops

DropChance
Test Reagent (item 22699)30 %
Wrench5 %
Used Iron Plate20 %
T W O Card0.01 %
As the MVP it also gives Mysterious Part every time and two separate 20 % rolls of Old Purple Box.

Notes

  • The boss gives no experience; the machine parts are the only experience in the run.