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Steam player data · App 5268550

The Demon Lurking in Osaka Castle – Episode 1

View on Steam ↗Updated 04 Oct · 10:41 UTC
  • Single-player
  • Mouse Only Option
  • #category_playable_at_your_own_pace
  • Playable without Timed Input
  • Family Sharing
Steam

Store data

UK price
£2.38
US price
$2.69
Positive reviews
100%
Total reviews
0
Release date
4 October 2026
Concurrent players0Most recent successful sample
Today's peak122/144 samples
Tracked peak1Highest retained daily peak
Steam rating100%0 reviews
Steam metadata

Game information

Details supplied by the Steam store
App ID
5268550
App type
Game
Supported systems
Windows
Genres
Adventure, Indie
Release date
4 October 2026
Last player update
04 Oct · 10:41 UTC
Steam store data

System requirements

Supplied by the developer on Steam

Windows

Minimum
Requirement
Requires a 64-bit processor and operating system
OS
Windows 10 64-bit
Processor
Intel Core i3 or equivalent
Memory
4 GB RAM
Graphics
DirectX 11 compatible graphics
Storage
10 GB available space
Recommended
Requirement
Requires a 64-bit processor and operating system
OS
Windows 10 / 11 64-bit
Processor
Intel Core i5 or equivalent
Memory
8 GB RAM
Graphics
DirectX 11 compatible graphics
Storage
10 GB available space

Launch window

Released 4 October 2026 · Tracking from 4 October 2026

SteamWatch’s first observed day and week; tracking can begin after release. Top Sellers is Steam’s revenue ranking, not a sales estimate.

First observed dayIn progress
Player peak
1
Steam reviews
1100% positive
Twitch peak
Not recorded
Price observed
£2.38
Top Sellers
No appearanceNo ranked days

1 player-data day recorded in this window.

First observed weekIn progress
Player peak
1
Steam reviews
1100% positive
Twitch peak
Not recorded
Price observed
£2.38
Top Sellers
No appearanceNo ranked days

1 player-data day recorded in this window.

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Player history

Concurrent players

Peak 1Average 1Latest 0
0011104 Oct 2026, 07:00 UTC04 Oct 2026, 10:00 UTC

24-hour and 7-day views use hourly peaks from ten-minute samples. Longer views use retained daily peaks. Up to 24 recent event markers are shown per layer.

Twitch

Twitch stats

Awaiting the first Twitch sample.
Long-term history

Monthly players breakdown

Calculated from SteamWatch samples
MonthPeakGain% gainAverageAvg % gain
Last 30 days1——0—
October 20261——0—
Explore game activity ↓
About this game

Description

Supplied by the Steam store

Fear, despair, loss, anguish—and finally, hope.

The Demon Lurking in Osaka Castle – Episode 1 is a live-action horror visual novel set in a distorted version of Osaka Castle Park in Osaka, Japan.

Created independently by a game developer who previously worked as a director at a major Japanese game studio.

What begins as an ordinary night with a friend gradually turns into something impossible. As the familiar scenery of Osaka Castle Park begins to change, the two boys find themselves trapped in a place that looks familiar—but feels completely wrong.

This is a story about ordinary people caught in an extraordinary nightmare, trying to survive without losing their humor, their hope, or themselves.

EPISODIC FORMAT

This release contains the complete Episode 1 of The Demon Lurking in Osaka Castle .

Episode 1 concludes with a short preview of Episode 2.

Episode 2 is currently in development and is not included in this release.

GAME OVERVIEW

A high school student suddenly finds himself trapped in a distorted version of Osaka Castle Park.

Together with his friend, he searches for a way out while trying to understand what has happened to the park—and what kind of creatures may be lurking within it.

The game combines live-action footage, visual-novel storytelling, exploration, and player choices. Lighthearted conversations and everyday humor continue even as the situation becomes increasingly unsettling.

Episode 1 is the beginning of a larger story, following ordinary people who have no special powers, no weapons, and no idea what awaits them next.

FEATURES

• A live-action horror visual novel set in Osaka, Japan

• Real footage filmed on location in Osaka Castle Park

• A mixture of horror, supernatural mystery, and lighthearted character banter

• Player choices and branching story elements

• An ordinary protagonist with no special powers

• Approximately 30 minutes of gameplay in Episode 1

OSAKA CASTLE PARK, JAPAN

The Osaka Castle Park footage used in the game was filmed on location in the real Osaka Castle Park in Osaka, Japan.

Rather than recreating the location with 3D graphics, the game uses real footage to place its supernatural horror story inside a familiar, everyday environment.

For players who have visited Osaka, some locations may feel surprisingly familiar. For those who have never been to Japan, the game offers a glimpse of what it feels like to walk through Osaka Castle Park—before things begin to go terribly wrong.

The contrast between a real tourist destination and the unnatural events unfolding within it is an important part of the game's atmosphere.

DEVELOPER'S NOTE

This is a small, independently developed horror game that combines live-action footage, visual-novel storytelling, casual conversation, and supernatural horror.

Rather than keeping the story relentlessly dark, the characters continue joking, arguing, and talking like ordinary people even as their situation becomes increasingly terrifying.

The result is intentionally a little unusual. I hope you enjoy its distinctly Japanese setting, strange atmosphere, and the mystery surrounding Osaka Castle.

CONTROLS

• Advance text / confirm selections: Left-click, Enter, or Space

• Move the cursor: Mouse or touchpad

• Open the menu: Click the menu icon in the bottom-right corner

VIDEO & LIVE STREAMING GUIDELINES

You are free to upload videos or livestream any content included in the demo version of the game. Monetization through official features on platforms such as YouTube and Twitch is also permitted.

For the full version of the game, videos and livestreams are permitted only up to the end of the prologue. Please do not share or stream any story content beyond that point.

Please also avoid using major spoilers, including important story developments or endings, in video titles or thumbnails.

Original English Translation: Morgan Blake

Steam gallery

Screenshots

10 available
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