Undernauts: Labyrinth of Yomi

A turn-based dungeon crawler where magic opens new escape routes

EXPERIENCE, Poppy Works · Published by Aksys Games · Released Nov 4, 2021

Reviews: Mostly Positive; 79% of 219
Recent reviews: Not enough recent
Players: 6; daily peak, Oct 28, 2026
Steam Deck: Playable
Last update on Steam: 4 years ago; Jul 13, 2022
Minimum PC: 1280×720; 2 GB RAM · 2 GB disk; Full requirements

What is Undernauts: Labyrinth of Yomi?

A single-player, first-person dungeon RPG set in Yomi, a monster-filled underground labyrinth where resource hunters must find a way back to the surface. You create a six-person party, navigate grid-based dungeon floors, fight monsters, and level up while gathering resources.

For you if...

+you like managing a party in turn-based battles
+you enjoy dark stories with a horror tone

Not for you if...

−you want real-time action rather than menu-based battles
−you prefer open environments to grid-based dungeon exploration

What players say

79% of 219 reviews are positive

Players praise the quality-of-life conveniences and beginner-friendly design. Some consider the asking price too high, while older reviews also criticize keyboard-and-mouse controls.

Screenshots and trailer

Undernauts: Labyrinth of Yomi screenshot 1

Undernauts: Labyrinth of Yomi system requirements

Minimum: 1280×720, 2 GB RAM, 2 GB of disk space.

As published by the developer.

Can my PC run Undernauts: Labyrinth of Yomi?

The published requirements do not name a graphics card we can compare.

Set up my PC →

Minimum

OS: Windows 10
Processor: 2.2 GHz speed or better
Graphics: 1280×720
Memory: 2 GB RAM
Storage: 2 GB available space

Does Undernauts: Labyrinth of Yomi have co-op or multiplayer?

No: single-player only, no multiplayer modes declared. With Remote Play Together, one copy is enough to play the local modes online with friends.

Does Undernauts: Labyrinth of Yomi run on Steam Deck?

Playable Playable: it runs on Steam Deck with some adjustments.

The launcher or setup tool may need the touchscreen or virtual keyboard
Some text entry requires manually opening the on-screen keyboard
All functionality is accessible with the default controller configuration
Shows Steam Deck controller icons
In-game text is legible on Steam Deck
Default graphics settings perform well on Steam Deck

PC version details

DRM: None declared on Steam
Controller: Keyboard and mouse
Platforms: Windows
Achievements: 19
Steam features: Family Sharing
Languages: Full audio: Japanese. Text only: English.

Does Undernauts: Labyrinth of Yomi use AI-generated content?

No AI-generated content is disclosed on the game's Steam page.

Self-reported by the developer under Steam rules: it covers AI content that ships in the game, not tools used to make it. Steam page checked on Oct 27, 2026. How to filter AI games on Steam