Dolls Nest Guide: Walkthrough to Final Clear

The Game Doesn’t Explain Things Very Well
I apologize if some parts feel unnatural, as I am translating from Japanese.
Here’s a full walkthrough of Dolls Nest. I personally struggled a bit, but the game turned out to be a solid action experience, taking me around 25 hours to complete.
The field is vast, exploration takes time, and most importantly, there were no instructions on what to do next, and this was the case all the way to the end. Did everyone understand this?
Important Points to Consider for Completing the Game
Help Yoyo
I realized later in the game that I missed a crucial event in the early stages, where you need to help Yoyo-san in the Central Cavern. If you help Yoyo-san, they will open an item shop in the Decayed Broodchamber, so make sure to help them early in the game.

As a result, I struggled quite a bit because I couldn’t replenish healing items. I really wonder why such an important event wasn’t incorporated into the story. Well, I guess it’s my fault for not discovering it.
There’s no way to miss this event. Also, don’t forget to bring the Supplement.
Nerve Sample
After helping Yoyo-san, you can purchase a Nerve Sample from them and give it to Nehma to increase the HUMANOID EXPANSION LIMIT RELEASE. After this, Nymphs will start to appear in each stage, and by defeating them, you’ll be able to obtain Nerve Samples.
Nymphs will only appear after clearing the stage and revisiting specific locations.
They resemble the player in appearance and also have shields, making them tough opponents. You don’t need to force yourself to defeat them at first.
I Recommend Using Quadruped Legs.
If you’re not particularly attached to bipedal legs, I recommend using quadrupeds like the Alv413 G2 Varches. They offer higher load capacity, and most importantly, greatly improve both movement and turning speed. It also makes it easier to flank enemies and strike from behind.
You Can’t Clear The Stage All at Once
I’d love to clear a stage in one go, but I get stuck when the red barrier won’t open. It seems that I need to gather key items to progress! I can’t even count how many pointless explorations I was sent on before realizing this.
- The Upturned Forest&The Fault
- Defeat the boss in each area to obtain Code Fragment Alpha.
- The Great Forest&The Arboreal Nest
- Defeat the boss in each area to obtain Code Fragment Beta.
- Accumulation Zone&Forbidden Domain
- Defeat the boss in each area to obtain Code Fragment Gamma.
Defeat two bosses in each of the three stages to obtain key items. These will automatically combine to become the key to The Depths. This will allow you to access The Depths, while the red barrier will be postponed for now.
Where is The Depths?
The Depths can be accessed by taking the elevator at the center of the first floor of the Central Cavern. Be cautious, as the interior is very dark.
Destroy The Red Barrier
Defeating the boss in The Depths will grant you Her Right Eye. With this, you’ll be able to destroy the red barriers in each stage and progress further.
Beyond the red barriers, you may encounter bosses, or there may be areas with only equipment and items.
Destroy The Black Barrier
Beyond The Depths, in the final area, The Ark, there is a black barrier. To break this, you’ll need another key item. You can only obtain it by defeating the boss beyond the red barrier.

Collect Her Vestige in each stage: Water Treatment Levels, The Bridge, and Tomb of Divine Wisdom. Once collected, give them to Nehma to trigger an event, allowing you to face the final boss.
Related Videos1 (in Japanese)
I am introducing hidden elements available in subsequent playthroughs.
Related Videos2(in Japanese)
I am introducing the hard-to-find locations for obtaining weapon parts.