The competitive urban-style Japanese mahjong app is now live! Battle alongside the lovely ACG characters in-app and against other Riichi mahjong players to conquer Riichi City!
◆Free to Play
It's free to play the basic game modes! Enjoy the real Riichi mahjong games with your friends anywhere, anytime!
◆Real-Life Design Elements
The real-life design elements in the modern Riichi City, such as mahjong houses, cafés, convenience stores and more, bring the realness of playing live Japanese mahjong games to the app! Experience the fierce competition in the fast-paced Japanese mahjong matches!
◆Interesting game rules
Shugi, Wareme, Open Riichi, Yakitori, Rinshan Pao etc...
You can play these special rules with your friends every time!
◆ACG Characters with Unique Playing Styles & Personalities
Meet and bond with the ACG characters in-app, each featuring their own playing styles and personalities, such as aggressive, defensive, reading discards... You name it! Grow with them and take your Japanese mahjong skills to the next level!
◆Fully Voiced by Famous Japanese CVs
Several famous and popular Japanese CVs fully voice the ACG characters in Riichi City! Be their captain and compete with others in the mahjong tournaments now!
CVs: Ogura Yui、Namikawa Daisuke、Ishikawa Yui、Arai Satomi、Suguta Hina、Morishima Shuuta、Hasegawa Reina...
Enjoy your game with mahjong stars!
◆Beginner-Friendly Functions
Riichi City has a lot to offer, including tutorials, game log, spectator mode, hints for the winning tiles, tips for drawing and discarding tiles, auto hints, point calculation, and so much more! All of these help beginners ease into the Riichi mahjong fun!
◆Plenty of Events with Generous Rewards
Stay tuned to the official knockout tournaments, Japanese mahjong matches, limited-time challenges and events featuring tons of prizes in the future!
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There will be an update scheduled on 12/23 from 11:00 to 17:00 (UTC+9). Please note that the duration is subject to change without prior notice.
You can still access the game as normal during the update.
1. Introducing the 2025 Christmas Battle Event
Event duration: 2025/12/23 (Tue.) 19:00 - 2025/12/30 (Tue.) 23:59 (UTC+9)
Event description:
(1) Players earn a Christmas Surprise Bag by placing higher than Santa Claus in a match. Any Christmas Surprise Bags that are not claimed by players may be claimed by Santa Claus instead.
(2) Each Christmas Surprise Bag contains a variety of rewards, including Lucky Tokens, event-exclusive Tiles, a limited Title, and more!
* Santa Claus is selected at random in every match, and only Santa Claus sees the Christmas hat icon during the match.
* Other players see the Christmas hat icon only on the Match Result page.
* A pity system is available for Christmas Surprise Bag rewards. For more details, please check our official social media posts.
2. Introducing Mahjong 101 System
Mahjong 101 is a system tailored for both mahjong beginners and advanced players.
(1) The Basics section compiles essential beginner FAQs. Completing the associated tasks helps players ease into the game and progress smoothly through the early stages.
(2) By completing additional tasks, players earn exclusive decorationsincluding Tabletops, Tiles, and Riichi Sticksalong with Lucky Tockens and other rewards.
All Mahjong 101 content is also accessible via Mahjong Academy.
3. Menia & Fukase Alice Limited-Time Rate Up!
Event duration: 2025/12/24 (Wed.) 11:00 - 2026/01/01 (Wed.) 10:59 (UTC+9)
Event description: During this period, players will have higher chances of obtaining Menia and Fukase Alice in the limited-time Gacha pool Light & Shadow!
4. Outfits & Packs Limited-Time Rerun!
After the update, the following outfits and packs will be available!
Inukai Hina - Ice Witch\'s Grace
Tachibana Kaoru - Merry Commander
Fukase Alice - Christmas Eve Fairy
Menia - Honey Trap
Ice Witch\'s Grace Excl. Outfit Pack
Inukai Hina - Ice Witch\'s Grace
Tabletop - Frozen Warmth
Tiles - Fawnicorn
Merry Commander Excl. Outfit Pack
Tachibana Kaoru - Merry Commander
Tabletop - Guardians in the Corner
Tiles - Nutcracker
Christmas Eve Fairy Excl. Outfit
Fukase Alice - Christmas Eve Fairy
Honey Trap Excl. Outfit
Menia - Honey Trap
5. Anniv. Character AU.RO.RA Limited-Time Rerun!
Event duration: 2025/12/26 (Fri.) 11:00 - 2026/01/21 (Wed.) 10:59 (UTC+9)
Event description: During this period, players will have higher chances of obtaining the anniversary character AU.RO.RA in the limited-time Gacha pool Scarlet Twins!
The following outfits and packs will also be available!
AU.RO.RA - Prisoner of the Heart (SP)
AU.RO.RA - Toxic Temptation
Prisoner of the Heart Excl. Outfit Pack
AU.RO.RA - Prisoner of the Heart (SP)
Tabletop - Doom
Tiles - Blood Wing
Toxic Temptation Excl. Outfit
AU.RO.RA - Toxic Temptation
6. Shiraha Asuka & Elsie Limited-Time Rate Up!
Event duration: the end of maintenance on 2025/12/30 (Tue.) 11:00 - 2026/01/21 (Wed.) 10:59 (UTC+9)
Event description: During this period, players will have higher chances of obtaining Shiraha Asuka and Elsie from the new Gacha pool League Stars XXI.
The following outfits and packs will also be available!
Elsie - Descent of Angel
Shiraha Asuka - Fox Bride
Descent of Angel Excl. Outfit Pack
Elsie - Descent of Angel
Tabletop - The World
Tiles - The Sun
Fox Bride Excl. Outfit Pack
Shiraha Asuka - Fox Bride
Tabletop - Messengers\' Gathering
Tiles - Fox
7. After the update, players can set multiple Wallpapers in the Gallery and see a random one each time the page loads.
8. Other optimizations.
Minimum Setup
- OS: Ubuntu 10.04.4 LTS (Lucid Lynx)
- Processor: Intel Core i5 2.4 GHzMemory: 2 GB RAM
- Memory: 2 GB RAM
- Graphics: AMD Radeon HD 6490MNetwork: Broadband Internet connection
- Storage: 500 MB available space
Recommended Setup
- OS: Ubuntu 18.10 (Cosmic Cuttlefish)
- Processor: Intel Core i5-2400S. 2.6 GHzMemory: 3 GB RAM
- Graphics: AMD Radeon HD 6750MNetwork: Broadband Internet connection
- Storage: 500 MB available space
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