An area in this stage will not open
The checker walks the release’s own requirement tree for this task and says which part is missing.
STEAM FULL RELEASE · WALKTHROUGH
Unlock Deep Catacombs Walkthrough
MAIN ROUTEContains deep-arc spoilers
- Starts after
- Essence of Delvek
- Main goal
- Return the Essence of Delvek to Professor Dayton.
- Recorded outcome
- Climbing Rope · Opens Deep Catacombs
- Leads to
- Deep Catacombs
Quick Route
The task this stage belongs to files more than one step; the arc’s own recorded order is listed under the step-by-step below.
Before You Start
Complete these first, in any order the release allows.
Prerequisite Bone Cleanup
Complete Bone Cleanup to unlock Deeper Research.
Bone Cleanup gives Mall Elevator Key, enabling Deep Mall where Deeper Research begins
Also needs Meet Sophia
You also need Meet Sophia progress for the later stages of Deeper Research.
Meet Sophia pit progression is additionally required for the Deep Catacombs phase of Deeper Research
Earlier area Finish Deep Woods first
Deep Woods comes earlier in the deep route than Deep Catacombs.
Item needed Get the Climbing Rope
It is one of the things Deep Catacombs waits on.
You need all of these.
The record names nothing to prepare for this stage beyond the entries above, and this page will not add gear or supplies it cannot source.
Step-by-Step Walkthrough
The recorded route through Deeper Research, in order.
Where are you stuck?
- Deep Mall investigation
- Essence of Daeus
- Unlock Deep Woods
- Essence of Delvek
- Unlock Deep Catacombs (this stage)
- Essence of Kaal
- Endgame revelation
Step 1Unlock Deep Catacombs
- What to do
- Return the Essence of Delvek to Professor Dayton.
- What it advances
- Climbing Rope · Deep Catacombs
The release records no separate place for this step: its task page files the area the step opens, and a page the step opens is not a place the step happens in.
The release records no separate condition for this step: its task page files the cell that follows it, so nothing is printed here as something to satisfy first.
Task: Deeper Research
Stuck on this step?
This step’s task page also offers “I can’t find …” for the item the step hands over and “I can’t reach …” for the area it opens. Neither is a reason this step is stuck, so neither is repeated here.
Main Tasks
- Deeper Research
This stage is one recorded step of this task.
Important Items
Climbing RopeObtained during
Required for Deep Catacombs, but not enough on its own.
The rope is one of two gates. The pit route also needs Meet Sophia advanced far enough to open it.
Where You’ll Go
- Deep CatacombsWhere this stage leaves you
Optional & Parallel Content
Parallel content can be developed alongside this stage’s route; optional content is not confirmed as required. The record decides which is which, and the two are never mixed into the numbered step above.
Parallel
The record marks no parallel path on this stage — everything recorded here is on the main route.
The record marks no parallel path on this stage — everything recorded here is on the main route.
Optional
The record marks nothing on this stage as optional, so nothing here is offered as a can-skip extra.
Stuck in This Stage?
A required item is missing
The finder answers where each item comes from, so a missing key or rope can be sourced rather than guessed at.
The task this stage belongs to is not appearing
The task guide carries the release’s own recorded conditions, including the ones nobody expects to matter.
You are not sure which step you are on
The assistant asks what you have finished and answers with the next recorded step.
You lost an item you already had
Item pages record where each one comes from, so the item can be checked against its own source rather than an inventory guess.
Choices in This Stage
The record files no branch on this stage — the steps above are the same whichever way the release is played.
Before You Leave
- The release does not record this task as missable.
- No confirmed time limit. The release records no deadline for this task.
The record files no item, shop or system in this stage as something to use up before you leave.
Your Checklist
Personal checklist — not linked to your save file.
0 of 1 marked on this device.
What You Can Do Next
- Deep Catacombs
This stage is recorded on the walkthrough hub; it has no step-by-step page of its own.
Playing the Demo?
This stage is Steam only
The archived Demo records a different progression, and no Demo walkthrough is mapped to this Steam stage. The archive has a page of its own rather than a stage page with the same name.
Open the Demo →