Sealed OS is an Episode 17.1 story instance set inside a sealed-off section of the OS (Occupation Site) facility on Einbroch Field. The run is a mix of light combat and puzzle mechanics -- break a pipe device, cut thick wires, navigate railroad tracks, and fight a small number of mutant enemies to escape.
💡This is a story instance tied to Episode 17.1. You need quest 11600 before entry is available. The fights are not the main challenge here -- the puzzle and navigation sections are.
Requirements
| What | Details |
|---|---|
| Pre-quest | Quest 11600 must be active or complete |
| Party | Solo-friendly; party optional |
Reach the OS facility and enter the instance.
The Sealed OS instance is accessed from inside the OS area. A Ridsh NPC at map 1@os_b (188/45) handles the instance entry and tracks your progress through the sealed section.
Talk to Ridsh to begin. He explains the situation inside the sealed block and gives you your objectives.
Break the pipe device to release pressure.
The first mechanical puzzle is a pipe device in the facility. Interact with it to break the pressure seal. This opens up the next section of the sealed area and triggers the first monster spawn.
You will encounter a Dolor mutant and a Twin Caput in this area. Kill them to proceed.
Cut the three thick wires.
Three Thick Wire nodes are located across the sealed section. Each must be cut to disable the facility's lockdown systems. They are spread across the map -- check each side corridor.
The wires are interactable objects. Walk up to each one and use the interaction prompt to cut it. Cutting all three opens the path toward the railroad section.
💡The wires are not marked on your minimap. Explore each room and side passage -- they are placed in dead ends and side corridors off the main path.Navigate the railroad tracks to the exit.
The final section of Sealed OS is a railroad track puzzle. Follow the tracks carefully -- some branch points lead to dead ends. Stay on the correct track path to reach the facility exit.
There are no additional major enemies in this section. The hazard is navigating the branching tracks without doubling back.
Escape to Einbroch Field and collect your rewards.
When you reach the exit, the party is warped to ein_fild03. Completing the escape advances quest 11600 and triggers the reward payout.
Mysterious Component -- 25 components on quest completion600,000 Base EXP + 600,000 Job EXP on completionNotes
- Light combat. The only major enemies are one Dolor and one Twin Caput near the pipe device. The rest of the run is puzzle and navigation.
- Three wires required. You cannot proceed past the wire section until all three are cut.
- Story instance. Sealed OS is part of the Episode 17.1 narrative. Run it as part of the questline, not as standalone farm content.
- Mysterious Components. The 25 components are a meaningful early stock of Episode 17.1 crafting currency.