Iseshima mystery annai: Itsuwari no Kuro shinnjyu
Developed by Happymeal Inc., ESQUADRA,inc. · Published by Flyhigh Works
At a glance
Overview
An adventure, rpg game by Happymeal Inc., ESQUADRA,inc., published by Flyhigh Works — single-player.
Steam’s own one-line description: “舞台は東京から伊勢志摩へ…… ファミコン風アドベンチャーゲームの完全新作！” — developer/publisher text via the Steam store page.
Reception & community
Review sentiment, ownership and peak-concurrent estimates via SteamSpy; tags are player-voted on Steam. Estimates change over time.
Features & modes
Derived from the gameplay modes and feature categories Steam lists for Iseshima mystery annai: Itsuwari no Kuro shinnjyu.
| Feature | Supported |
|---|---|
| Single-player | Yes |
| Multiplayer | No |
| Co-op | No |
| Online co-op | No |
| PvP | No |
| Cross-platform multiplayer | No |
| Full controller support | No |
| Partial controller support | Yes |
| Steam Cloud saves | No |
| Steam Achievements | Yes |
System requirements (PC)
As published on the Steam store page. Requirements can change between updates.
Minimum
- OS *: Windows 7 or above
- Processor: 2GHz
- Graphics: DirectX11 compatible
- DirectX: Version 11
- Storage: 100 MB available space
Supported languages (1)
Iseshima mystery annai: Itsuwari no Kuro shinnjyu FAQ
Answered from the official Steam listing as of June 2026. Where something hasn't been announced, we say so rather than guess.
What kind of game is Iseshima mystery annai: Itsuwari no Kuro shinnjyu?
Steam classifies Iseshima mystery annai: Itsuwari no Kuro shinnjyu as a Adventure, RPG game, developed by Happymeal Inc., ESQUADRA,inc.. 舞台は東京から伊勢志摩へ…… ファミコン風アドベンチャーゲームの完全新作！
How much does Iseshima mystery annai: Itsuwari no Kuro shinnjyu cost?
As of June 2026, Steam lists Iseshima mystery annai: Itsuwari no Kuro shinnjyu at $6.99. Prices and regional pricing change — check the Steam page for the current figure.
Is Iseshima mystery annai: Itsuwari no Kuro shinnjyu single-player or multiplayer?
Steam lists these modes for Iseshima mystery annai: Itsuwari no Kuro shinnjyu: Single-player. It lists a single-player mode.
Is Iseshima mystery annai: Itsuwari no Kuro shinnjyu on PlayStation, Xbox, or Switch?
Our data comes from the Steam (PC) store, which lists Iseshima mystery annai: Itsuwari no Kuro shinnjyu for Windows. Console availability isn’t in our Steam-sourced data — check the official site or the console store.
Is Iseshima mystery annai: Itsuwari no Kuro shinnjyu out yet?
Yes — Steam lists a release date of Jul 24, 2019.
What platforms is Iseshima mystery annai: Itsuwari no Kuro shinnjyu on?
Iseshima mystery annai: Itsuwari no Kuro shinnjyu is listed for Windows on the Steam (PC) store. Console availability isn't covered by Steam's PC store data — check the official channels.
Is Iseshima mystery annai: Itsuwari no Kuro shinnjyu single-player or multiplayer?
Steam lists these modes: Single-player.
How much does Iseshima mystery annai: Itsuwari no Kuro shinnjyu cost?
Steam lists it at $6.99.
Does Iseshima mystery annai: Itsuwari no Kuro shinnjyu have achievements?
Yes — Steam lists 12 achievements for Iseshima mystery annai: Itsuwari no Kuro shinnjyu.
Who made Iseshima mystery annai: Itsuwari no Kuro shinnjyu?
Iseshima mystery annai: Itsuwari no Kuro shinnjyu is developed by Happymeal Inc., ESQUADRA,inc. and published by Flyhigh Works.
Where to get Iseshima mystery annai: Itsuwari no Kuro shinnjyu
We don't sell games or track prices — this links to the official Steam store page.
View on Steam →Listing details from Valve's public Steam store data · official site. Not affiliated with Valve/Steam, Flyhigh Works.