Illegal Mahjong

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App ID	2607320
App Type	Game
Developer	AleCubicSoft
Publisher	OTAKU Plan
Franchise	OTAKU Plan
Supported Systems	Windows
Technologies	Unity Engine
Last Changenumber	30101278
Last Record Update	17 July 2025 – 01:43:18 UTC ()
Release Date	12 January 2024 – 03:01:51 UTC ()

❓ 78.40%

148 reviews

In-Game

Yuri, the former heiress of a company, finds her father's business bankrupt. To repay the debts, Yuri must compete in mahjong and continue to win. Can Yuri truly defeat her formidable opponents?

Additional Information

Developer

AleCubicSoft

community_visible_stats

Yes

DLCAvailableOnStore

Yes

ReleaseState

released

Publisher

OTAKU Plan

Store Release Date

12 January 2024 – 03:02:00 UTC ()

osarch

empty string

community_hub_visible

Yes

Social Media

https://discord.gg/yW54Vr6Q8Q
https://x.com/otaku_plan

Primary Genre

RPG (3)

Store Genres

Adventure (25), Indie (23), RPG (3)

Steam Release Date

12 January 2024 – 03:01:51 UTC ()

Store Asset Modification Time

17 July 2025 – 01:43:05 UTC () (1752716585)

library_assets

library_capsule	en,zh-cn,ja,zh-tw
library_hero	en
library_logo	en,ja,zh-cn,zh-tw
logo_position ↴
pinned_position	BottomLeft
width_pct	80.12281835811248
height_pct	100

osextended

empty string

name_localized

schinese	黑道麻将
tchinese	黑道麻將
english	Illegal Mahjong
japanese	裏の賭け麻雀

review_score

review_percentage

Detected Technologies (?)

Unity Engine, UnityBurst SDK, UnityIL2CPP SDK

Content Descriptors

Some Nudity or Sexual Content (1), General Mature Content (5)

controllertagwizard

Yes

First seen on SteamDB

15 September 2023 – 04:41:51 UTC (), in changelist #20296436

Content Descriptors (Including DLC)

Some Nudity or Sexual Content (1), Adult Only Sexual Content (3), Frequent Nudity or Sexual Content (4), General Mature Content (5)

Supported Languages

4 Languages	Interface	Full Audio	Subtitles	Achievements
Japanese	Yes	Yes	Yes	Yes
English	Yes		Yes	Yes
Simplified Chinese	Yes		Yes	Yes
Traditional Chinese	Yes		Yes	Yes

Assets

Load all asset images

clienticon

60b29a8dfecbc34cbd33cadb4b8a0d80e863dfbd

clienttga

4a7bcf8e7e4a727a9e0bfd61c8dc8fd95a87e77b

icon

2ce68ffbb1f26d0250be65f88564ca3557a3f532

small_capsule

english	capsule_231x87.jpg
japanese	capsule_231x87_japanese.jpg
schinese	capsule_231x87_schinese.jpg
tchinese	capsule_231x87_tchinese.jpg

header_image

english	header.jpg
japanese	header_japanese.jpg
schinese	header_schinese.jpg
tchinese	header_tchinese.jpg

library_assets_full

library_capsule ↴
image/english	library_600x900.jpg
image/schinese	library_600x900_schinese.jpg
image/japanese	library_600x900_japanese.jpg
image/tchinese	library_600x900_tchinese.jpg
image2x/english	library_600x900_2x.jpg
image2x/schinese	library_600x900_schinese_2x.jpg
image2x/japanese	library_600x900_japanese_2x.jpg
image2x/tchinese	library_600x900_tchinese_2x.jpg
library_hero ↴
image/english	library_hero.jpg
library_logo ↴
image/english	logo.png
image/japanese	logo_japanese.png
image/schinese	logo_schinese.png
image/tchinese	logo_tchinese.png
image2x/english	logo_2x.png
image2x/japanese	logo_japanese_2x.png
image2x/schinese	logo_schinese_2x.png
image2x/tchinese	logo_tchinese_2x.png
logo_position/pinned_position	BottomLeft
logo_position/width_pct	80.12281835811248
logo_position/height_pct	100

Assets

main_capsule	capsule_616x353.jpg
small_capsule	capsule_231x87.jpg
header	header.jpg
hero_capsule	hero_capsule.jpg
library_capsule	library_600x900.jpg
library_capsule_2x	library_600x900_2x.jpg
library_hero	library_hero.jpg
community_icon	2ce68ffbb1f26d0250be65f88564ca3557a3f532.jpg
page_background_path	app/2607320
timestamp	17 July 2025 – 01:43:13 UTC

Trailers

256992263 ↴
trailer_name	pv
trailer_category	0
trailer_480p/video/webm	256992263/movie480_vp9.webm
trailer_480p/video/mp4	256992263/movie480.mp4
trailer_max/video/webm	256992263/movie_max_vp9.webm
trailer_max/video/mp4	256992263/movie_max.mp4
microtrailer/video/webm	2607320/646636/4911bf9615590f14d49160dafbe71085654b78e8/1750935943/microtrailer.webm
microtrailer/video/mp4	2607320/646636/4911bf9615590f14d49160dafbe71085654b78e8/1750935943/microtrailer.mp4
screenshot_medium	256992263/movie.293x165.jpg
screenshot_full	256992263/movie_full.jpg
trailer_base_id	646636
all_ages	true
is_highlight	true
timestamp	1704424762

Depots

ID	Configuration	Size	DL.
2607321	Japanese	248.14 MiB	176.02 MiB
2607322	Simplified Chinese	248.16 MiB	176.04 MiB
2607323	English	248.16 MiB	176.04 MiB
2607324	Traditional Chinese	248.16 MiB	176.04 MiB

Inner depots from DLC

ID	Configuration	Size	DL.
2725741	DLC 2725740JapaneseIllegal Mahjong R18 DLC	404.26 MiB	318.93 MiB
2725742	DLC 2725740Simplified ChineseIllegal Mahjong R18 DLC	408.18 MiB	322.53 MiB
2725743	DLC 2725740EnglishIllegal Mahjong R18 DLC	408.18 MiB	322.53 MiB
2725744	DLC 2725740Traditional ChineseIllegal Mahjong R18 DLC	408.18 MiB	322.53 MiB

Total size on disk is 2.56 GiB and total download size is 1.94 GiB.

Total size on disk is 248.16 MiB and total download size is 176.04 MiB, when filtered to Windows, English, no DLC depots.

Branches

Name	Description	Build ID	Time Updated
public		13133658	10 January 2024 – 06:38:05 UTC

Other

Name	Value
baselanguages	English, Simplified Chinese, Traditional Chinese, Japanese
hasdepotsindlc	1

Illegal Mahjong

Additional Information

Supported Languages

Tags

Categories

Assets

Depots

Inner depots from DLC

Branches

Other