# Duo Labyrinth Mapper - Delve — Crawl above. Map fills below.

> Crawl above. Map fills below. (iPhone/iPad app by tasuku nayuki.)

- Source: https://appshunter.io/ios/app/duo-labyrinth-mapper-delve/id6820070241 (this page in markdown: same URL + `.md`)
- Developer: [tasuku nayuki](https://appshunter.io/developer/1896779740)
- Category: Games, Adventure, Role Playing
- Price: Free with in-app purchases
- Age rating: 12+
- Requires: iOS 26.0 · 7 MB
- Languages: English, Japanese
- Released: 2026-10-23
- Data updated: 2026-10-24

## What is Duo Labyrinth Mapper?

A two-screen dungeon crawler: step through a first-person labyrinth while your grid map fills in as you walk.
Past the hand-built first stratum, the labyrinth goes on without end, every floor a new shape.

■ Delve on two screens. Fill in the map.
Open iPhone Duo and the labyrinth gets one screen, your map and controls the other.
You only watch the labyrinth — everything you touch is on the map screen in your hands.
Closed on the cover screen, or on any iPhone: it all works.

■ The map draws itself
Walls, doors, stairs, chests, springs and barred doors you see are drawn on the map automatically.
Double-tap a spot on the map to walk there over squares you've visited.
Roaming "lords" move one step at a time across your map. Read their moves and slip past.

■ Close to camp. Close to copy.
Close the phone inside the labyrinth and the cover screen becomes a campfire.
Close and reopen in front of an ancient tablet, and its pattern presses onto your map — revealing a hidden door.

■ Your map is your pay — and your pride
File your maps at the Surveyors' Guild and get paid for how much you've explored.
Explore every square for a gold seal. Even a party wipe never erases your maps.

■ Turn-based battles with a party of four
Choose four of five classes: Blade, Warden, Archer, Arcanist and Herbalist.
Repeat, Auto and Fast keep battles brisk.
When the Danger meter under the move pad fills, monsters appear.

■ Stratum I: the Vine Forest — and the endless depths below
Three hand-built floors and the warden at the bottom. Defeat it and the stairs lead further down.
From B4F on, every floor is a new maze, without end. The deeper you go, the tougher the foes and the richer the chests. A lord haunts every third floor, a warden every ninth.

■ Also
- Fully offline. Your adventure and maps are saved only on this device, every step
- Dominant-hand setting swaps the map and move pad on the screen in your hands
- Three difficulty levels, changeable anytime
- All sound is synthesized; original FM-style music
- Steps: each move onto a new square uses 1 step; turning and retracing are free. Start with 100 steps plus 25 free every day (no carry-over). More steps are available as in-app purchases
- No ads while exploring or fighting. A banner appears only in town. Remove ads with a one-time purchase

Terms of Use: https://nayukitecture.com/works/duo-maze-terms-of-use.html

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Remove Ads | $1.99 | one-time |
| 1,200 Steps | $9.99 | one-time |
| 100 Steps | $0.99 | one-time |
| 350 Steps | $2.99 | one-time |


## Is Duo Labyrinth Mapper safe?

Not enough ratings yet to assess Duo Labyrinth Mapper.

## Is Duo Labyrinth Mapper legit?

Duo Labyrinth Mapper - Delve appears legitimate, with a few gaps. The AppsHunter Legitimacy Score for Duo Labyrinth Mapper is 65 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 2 releases)

### 1.0.1 — 2026-10-23

Minor improvements.

### 1.0 — 2026-10-23

No release notes.

## More apps by tasuku nayuki

- [メモッピン](https://appshunter.io/ios/app/id6771405272)
- [防災知識 - マル災｜地震 津波 備え](https://appshunter.io/ios/app/id6804904252)
- [Madorimo - Floor Plan Notes](https://appshunter.io/ios/app/madorimo-floor-plan-notes/id6808868188)
- [定点撮影 - 三脚不要な定点カメラ](https://appshunter.io/ios/app/id6808869344)
- [建築電卓 - 尺貫法・坪・帖の換算](https://appshunter.io/ios/app/id6809843490)
- [カメリーノ - 手持ちの服でコーデを試す](https://appshunter.io/ios/app/id6810034871)

All apps by tasuku nayuki: https://appshunter.io/developer/1896779740

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-10-24.*