Horror games in black, white and static.
Horror games in black, white and static.
POWERED BY
Click or press any key to skip
Quit the game?
THANK YOU FOR PLAYING
MONOKURO GAMES
404 — FILE NOT FOUND
The page you were looking for isn't here. Maybe it never was.
MONOKURO GAMES is a small indie game studio from Japan.
We make horror games in black, white and static. We build the games you play and the engine they run on — and with our own MONO ENGINE, we make them together with AI.
MONOKURO GAMES is run by Monokuro (モノクロ。), an AI advisory practice in Osaka.
| Operated by | Monokuro (モノクロ。) |
|---|---|
| Brand | MONOKURO GAMES |
| Representative | Ryuhei Shimano |
| Founded | March 2025 |
| Address | 1-17-30 Hanazono-Higashimachi, Higashiosaka, Osaka 578-0931, Japan |
| Business | Game planning, development and publishing / Development of our in-house game engine, MONO ENGINE / AI advisory, tool development, training and design |
| Contact | Official LINE / Contact form |
CAM 02 · Night School, 1F Corridor WHover to develop
NEW GAME · 2–4P ONLINE CO-OP HORROR
The ghost only shows up on camera.
One player becomes the guard and is the only one who can see the ghost, through the security cameras. Everyone else walks the pitch-dark building with a flashlight and a gun. All you have is the voice on the radio.
Release [DATE] · Price [PRICE]
Camera list
Floor planEach round one player is picked at random to be the guard. Switch cameras, find the ghost, and warn whoever it's after.
Search desks and lockers for your key, then reach the exit. You can't see the ghost — a heartbeat and a flickering flashlight are your only warning.
Round N starts with N bullets. Anyone's hit repels an attack; a miss only costs ammo. If the ghost reaches you, your round is over.
What the guard sees
What a walker sees| Map | Ghosts |
|---|---|
| Night School | Ghost Girl / Anatomical Model / Toilet Girl |
| Abandoned Inn | Closet Woman / House Spirit Child / Ghost Maid |
| Midnight Station | Station Attendant / Shadow Passengers / Crawling Woman |
| Department Store After Hours | Mannequins / Lost Child / Impostor Customer |
| Housing Estate | The Neighbor / Blackout Woman / Wet Footprints |
| Night-Vision Light | See the ghost for 3 seconds |
|---|---|
| Invisibility Potion | The ghost loses you for 5 seconds |
| Cross | Banishes a ghost within 5 m |
Plus more rare finds hidden in the places you search — 13 items in all.
| Genre | Co-op horror (first person) |
|---|---|
| Players | 2–4 (online) |
| Platform | Windows |
| Languages | English / Japanese |
| Voice chat | In-game (push to talk) |
| Release / Price | [DATE] / [PRICE] |
| Requirements | [MINIMUM SPECS] |
| Developer / Publisher | MONOKURO GAMES (Monokuro) |
MONO ENGINE is the engine MONOKURO GAMES built for itself. Based on Godot Engine, it's tailored to the way we work: making our games together with AI. Scenes and scripts are all plain text — Claude reads and writes them directly, runs the game, and checks the result itself.
* Editor size measured (150.9 MB). 30 minutes measured by the developer. Credit savings measured by MONOKURO GAMES. 123 shots from the latest run.
Mujin Byoto's chapter 1 corridor, open in the MONO ENGINE editorHover to develop
The editor is about 151 MB. Drop it in a folder and it runs.
Scenes and scripts can be read and written directly by AI.
Launch, auto-play and screenshot checks — all from the CLI.
Builds a game exe, icon and all, in one command.
Film straight from inside the game — trailers and key art alike.
Fog, reflections and glow — enough to draw the air of a horror game.
The difference: whether there's an "interpreter" between the AI and the engine.
UE · UNITY × MCP
MONO ENGINE × CLAUDE
Look, fix, run again — Claude turns this loop on its own.
One edit rewrites many things at once. No calling tools one by one.
Structure and settings are readable text, so it builds with full context.
Auto-play and screenshots show the result; it fixes things on the spot.
No MCP tool definitions to read, so credit use stays light.
[gd_scene format=3] [ext_resource type="Script" path="res://scripts/stage1_corridor.gd" id="1_level"] [ext_resource type="Shader" path="res://shaders/level_surface.gdshader" id="2_surface"] [ext_resource type="PackedScene" path="res://scenes/player.tscn" id="3_player"] [ext_resource type="Script" path="res://scripts/flicker_light.gd" id="4_flicker"] [ext_resource type="PackedScene" path="res://scenes/ghost.tscn" id="5_ghost"] [ext_resource type="PackedScene" path="res://scenes/door.tscn" id="7_door"] [sub_resource type="Environment" id="Environment_dark"] background_mode = 1 background_color = Color(0, 0, 0, 1)
A scene is just text. Claude reads and writes it directly.
Scene tree
Auto-play check shots (excerpt)MONO ENGINE runs from the command line, auto-plays all four chapters and takes screenshots at key moments. Claude looks at the screens itself, finds problems and fixes them.
THINGS CLAUDE SPOTTED IN THE SHOTS — AND FIXED
## The director: a tall, featureless black figure in a white coat,
func _director() -> void:
_part(_body, _capsule(0.2, 0.62), coat, Vector3(0, 1.45, 0))
_add_blade(right_arm, 0.72, 0.34)
All seven ghosts in Mujin Byoto are built in script from spheres, cylinders and capsules. Not a single external 3D model.
| What people did | Ask, play, give feedback |
|---|---|
| What Claude did | Design, code, characters, staging, testing, fixes, export, trailer |
| UE / Unity × Claude | MONO ENGINE × Claude | |
|---|---|---|
| Setup | GBs to tens of GBs to install | A single 151 MB editor exe |
| What the AI can touch | Only what MCP exposes | Scenes and scripts, directly |
| Characters | External tools or asset stores | 3D characters built in code |
| Testing | A person plays and looks | Auto-play + screenshots, checked by AI |
| Export & video | Clicking through the editor | Exe export and filming by command |
| Credit use | Piles up with MCP round trips | 58% less |
* UE / Unity install sizes vary by setup. Credit savings measured by MONOKURO GAMES.
MONO ENGINE is an in-house tool used only for MONOKURO GAMES' own titles. It isn't sold or distributed — what you'll see of it is the games it makes.
See our games →Every one of them is built on our own engine, MONO ENGINE.
NEW
First game on MONO ENGINE| Title | Genre | Players | Status | Engine |
|---|---|---|---|---|
| CAUGHT ON CAM | Co-op horror | 2–4 (online) | Coming soon | MONO ENGINE |
| MUJIN BYOTO | First-person horror | 1 | Coming to Steam | MONO ENGINE |
| NEXT PROJECT | — | — | In development | MONO ENGINE |
Even the key art is a 3D scene rendered in MONO ENGINEHover to develop
FIRST GAME ON MONO ENGINE · FIRST-PERSON HORROR
Kurosumi Memorial Hospital
Kurosumi Memorial Hospital closed ten years ago. In the empty wards, a nurse call is ringing.
Release [DATE] · Price [PRICE]
CH.1
CH.2
CH.3
CH.4
No external 3D models — every ghost is built in codeThe long-haired woman / The patient / The nurse / The surgeon / The patient on the table / The crawling patient / The director
All seven are made from spheres, cylinders and capsules in script. Notes like "scarier" or "too cute" go straight into the code.
| Genre | First-person horror |
|---|---|
| Length | 4 chapters |
| Players | 1 |
| Store | Steam (coming) |
| Release | [DATE] |
| Price | [PRICE] |
| Developer | MONOKURO GAMES |
| Engine | MONO ENGINE |
Hover to develop
MONO ENGINE editorMONOKURO GAMES built its own engine, MONO ENGINE, to make our games together with AI.
Based on Godot Engine, MONO ENGINE keeps every scene and script as plain text. Claude reads and writes the project directly, then launches, auto-plays and films the game from the command line to check the result for itself.
Our first game made with it, Mujin Byoto, went from the first prompt to a complete, playable four chapters in about 30 minutes (measured by the developer).
No — MONO ENGINE is used only for MONOKURO GAMES' own titles, and we have no plans to sell or distribute it. Questions about how we make our games are welcome through the contact form.
Free to use in articles and videos. Please don't distort or recolour the logos.
monokuro-games-8bit.png
monokuro-games-8bit-light.png
mono-engine-horizontal.png
mono-engine-light.png
| Studio | MONOKURO GAMES |
|---|---|
| Operated by | Monokuro (モノクロ。) |
| Based in | Osaka, Japan |
| Games | CAUGHT ON CAM / MUJIN BYOTO |
| Engine | MONO ENGINE (in-house, based on Godot Engine) |
| Press contact | Official LINE / Contact form |
MONOKURO GAMES is a small indie studio from Japan making black-and-white horror games on its own engine, MONO ENGINE.
Monokuro (モノクロ。, "we") sets out below how personal information is handled on the MONOKURO GAMES website and services.
[TEXT: fields collected by the contact form, etc.]
[TEXT: replying to enquiries, improving our services, etc.]
[TEXT]
[TEXT: if analytics tools are used]
Monokuro (モノクロ。) / Official LINE / Contact form
Effective [DATE]