Mahjong Royale

Category: Home games · Japanese Riichi online
Also called: 麻雀ロワイヤル; mjroyale; SUCCESS Mahjong Royale
Last checked: 2026-09-15

What it is

Mahjong Royale (麻雀ロワイヤル) is a first-party online multiplayer Japanese Riichi (Japanese mahjong) service from 株式会社サクセス (SUCCESS Corp.). Official hub and play-guide copy frame 通信対戦麻雀 — live table matches against other players in the browser, with 公式戦 (East-only / hanchan), a short ロワイヤル戦 East-1 survival mode, and AI 練習戦. It is not American Mah Jongg, not Chinese Official / MCR as the primary product, and not solitaire tile-matching.

Who it’s for

Players who want competitive or casual live Riichi at home in the browser, labeled clearly as Japanese online 対戦 mahjong rather than an NMJL-card American table or a Shanghai-style puzzle.

Why it’s listed

Plaza needs a citeable Home-games slot for SUCCESS’s first-party Mahjong Royale client that is not already on disk (not Mahjong Fight Club, Sega NET MJ, Tenhou, RonRon / 龍龍, Mahjong Soul, Riichi City, Mahjong 4 Friends, Mahjong Time, Maru-Jan, or other home-game files).

• Official hub (https://mjroyale.com/) loaded on 2026-09-15. Page stamp 2026-03-27; footer © SUCCESS Corp. Nav: ゲーム紹介, プレイ方法, よくある質問, 不具合対応状況.
• Game intro (https://mjroyale.com/introduction.html): ロワイヤル戦 is East-1 only; players start with 5000 points and 3 jewels; winners take jewels and points from losers; game over when points or jewels hit 0; re-entry allowed during the event window. Stats library of 300+ items across modes.
• Play guide (https://mjroyale.com/play_guide.html): three modes — 公式戦 (通信対戦; opponents drawn from players online; 東風戦 and 半荘戦; tickets required; tickets can return by rank); ロワイヤル戦 (East-1 survival; tickets to enter, no extra ticket while you survive); 練習戦 (campaign / special-mode AI tables; free; same basic rules as 公式戦). 公式戦 rules print 持ち点25000点の30000点返し; クイタン / 後付けあり; 赤ドラ; 飛び and ハコ下精算; 裏ドラ / 槓ドラ; ダブロン / トリプルロン; no open riichi; riichi needs 1100 points or more. Confirms real multiplayer table rules (ポン / チー / カン / ロン / ツモ), not tile-matching.
• FAQ (https://mjroyale.com/faq.html): play needs 麻雀プレイチケット; starter tickets plus 1st-place / event awards; shop purchase uses モバコイン or ゲソコイン; 練習戦のみ無料で何回でもプレイできます. Account: Yahoo! JAPAN ID or ゲソてん ID. Browser client — FAQ still describes a Flash-era “no download” client; confirm the live launcher. Platforms listed: Japanese Windows 8.1/10 (Chrome / Edge) and Mac OS Catalina 10.15.5+ Safari on Yahoo! Mobage only.
• SUCCESS corporate profile PDF (https://www.success-corp.co.jp/wp-content/uploads/sites/49/2026/08/success-corporate-profile.pdf): 株式会社サクセス（SUCCESS Corporation）; 所在地 〒141-0022 東京都品川区東五反田 1-21-13 ファーストスクエア五反田 3F; 代表取締役 吉成 隆杜; product list includes 麻雀ロワイヤル.

No NMJL card, Charleston, or American scoring appears on those official pages. Table play is framed as online 対戦 / 対局 against other people — not a tile-matching solitaire board.

Official URL

Hub: https://mjroyale.com/

ゲーム紹介: https://mjroyale.com/introduction.html

プレイ方法: https://mjroyale.com/play_guide.html

よくある質問: https://mjroyale.com/faq.html

Company: https://www.success-corp.co.jp/

Corporate profile (address stamp): https://www.success-corp.co.jp/wp-content/uploads/sites/49/2026/08/success-corporate-profile.pdf

Location

Play is online in the browser (Windows; Mac via Yahoo! Mobage per the FAQ). Operator: 株式会社サクセス / SUCCESS Corp. Address printed on the August 2026 corporate profile: Higashi-Gotanda 1-21-13, First Square Gotanda 3F, Shinagawa-ku, Tokyo 141-0022, Japan. A related LINE / mobile 麻雀ロワイヤルモバイル client exists under the same brand; this Plaza slot is the mjroyale.com at-home online multiplayer service.

Notes

• Japanese Riichi / Japanese mahjong only as the listed rule family. Do not blur this into American Mah Jongg or Chinese Competition Rules.
• Online 対戦 multiplayer tables — official 公式戦 features 東風戦 / 半荘戦; ロワイヤル戦 is still a four-player 対局, not solitaire tile-matching.
• Hub, intro, play guide, FAQ, and SUCCESS profile loaded on 2026-09-15. Hub stamp 2026-03-27.
• UI is Japanese-first. Confirm the live client language options yourself. FAQ “Flash / no install” wording may lag the live stack — use the hub you actually load.
• Not affiliated with Mahjong Plaza.

FAQ

Q: Is Mahjong Royale American Mah Jongg or solitaire?
A: No. The official play guide calls 公式戦 通信対戦麻雀 with 東風戦 and 半荘戦 against other players, and lists Japanese yaku / ポン・チー・カン・ロン・ツモ. It is not an NMJL-card American product and not a tile-matching puzzle.

Q: Where can I play?
A: Official hub https://mjroyale.com/ (ゲーム紹介 / プレイ方法). FAQ requires a Yahoo! JAPAN ID or ゲソてん ID and a supported browser. Related SUCCESS mobile clients exist; this listing is the mjroyale.com table service.

Q: Is it free?
A: FAQ: 練習戦 can be played free; 公式戦 and ロワイヤル戦 need 麻雀プレイチケット (starter allotment, rank/event awards, or shop purchase with モバコイン / ゲソコイン). Play-guide copy also frames 練習戦 as a campaign / special-mode AI table — confirm the live hub for which modes are open that day.