Illegal Mahjong

Adventure· Nudity· Sexual Content· Mahjong

Released Jan 2024

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?

83% positive · 173 reviews

Done

All announced content has been released

High confidence

Done

All announced content has been released

High confidence

Where to buy

Steam Updated 11 Oct 2026 $6.99

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Evaluation

Illegal Mahjong launched on January 11, 2024 as a complete mahjong RPG. An adult (R18) DLC was released shortly after on January 27, 2024 — the only DLC for the game, and it is already released. There are no unreleased DLC entries in the store listing. The publisher's news feed (OTAKU Plan) is active and posts frequently, but all recent posts are announcements and launch notices for entirely separate, unrelated games on the publisher's catalog. None of these posts reference Illegal Mahjong specifically, and none indicate any new content, patches, or updates are planned for it. The game has received no post-launch content updates of its own, and there is no developer communication suggesting further development is intended. Illegal Mahjong appears to have launched as a finished, self-contained product. With its sole DLC already shipped and no outstanding commitments announced, the game is complete.

Evidence

The only DLC — an R18 adult content pack — released on January 27, 2024, just 16 days after the base game launched.

dlc listing · Jan 27, 2024 source content shipped

high

Most recent publisher news post (March 1, 2026) announces an entirely different game — Lord Liberty Quest II. No mention of Illegal Mahjong or any planned updates to it.

news post · Mar 1, 2026 source ambiguous

low

Content

1 of 1 released · no outstanding content

Released

Illegal Mahjong R18 DLC

Jan 2024

Media

Details

Developer

AleCubicSoft

Publisher

OTAKU Plan

Achievements

Platform

Windows

Controller

—

Steam Deck

Not rated

Players

Single-player

Nudity Sexual Content Mahjong Adventure Female Protagonist RPG Turn-Based Strategy JRPG Board Game Turn-Based Tactics Anime Cute Colorful Atmospheric Surreal

About this 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?

In this game, you control Yuri and compete in mahjong against various opponents.

If you manage to score the highest points by the end, you can repay the debts all at once. If any of the opponents surpass Yuri's score, it's game over for her.

Moreover, unlike regular mahjong, you can acquire skill points during the mahjong matches which Yuri can use to learn cheating skills.

Unlock these cheating skills and climb your way to victory against high-ranked tables with an advantage.