オンライン麻雀 Maru-Jan

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Looking for an online mahjong experience that brings together players from all skill levels? With over 1.6 million registered members, our platform offers a complete and immersive mahjong environment. Whether you're just starting out or already an expert, there's something here for everyone. Plus, we frequently host free events to keep the excitement going.

Free Trial Points for New Users

We offer complimentary trial points to every user who downloads the app and completes new registration—no exceptions!

Join the Most Popular Online Mahjong Platform

Maru-Jan’s Google Play app version is bustling daily with around 8,000 players, making it one of the most active platforms for mobile mahjong enthusiasts.

Thanks to minimal wait times, you can jump into games quickly and enjoy seamless play.

To enhance gameplay comfort, we’ve optimized tile sizes for smartphones and tablets. Discarded tiles are approximately 1.3 times larger, while hand tiles on smartphones are about 1.26 times bigger—making them easier to see and interact with.

Experience the Authentic "Real" Mahjong

(1) Realistic Tile Texture
Every tile has been meticulously crafted to resemble real mahjong pieces, including fine details like transparency, light reflection, and translucency.

(2) Precise Tile Arrangement Reproduction
Feel the realism with slightly misaligned discarded tiles and authentic tactile feedback when placing or hitting tiles.

(3) Manual and Automatic Tile Options
Choose between automatic tile setup or manually arranging the board yourself for a more hands-on experience.

(4) Advanced Fully Automatic Table Simulation
Our system uses dual tile sets on the server and mixes them to simulate realistic tile bias—previous game distributions subtly influence the next game, just like in real-life sessions.

(5) Authentic Sound Effects
Enjoy high-quality audio recorded directly from real mahjong tiles and sticks clashing together, along with the mechanical sounds of the table in motion.

(6) Minimalist Design for Maximum Focus
We keep visual distractions to a minimum so you can fully concentrate on your game without interference.

(7) Serious Gameplay for Competitive Players
While participation requires a small fee, finishing in first place grants you free entry—offering a thrilling and fair competitive environment.

Come and discover the level of realism Maru-Jan is proud to deliver.

Introducing Mahjong AI “KIRIN”

Our AI system analyzes tile values and provides key metrics and optimal discard suggestions based on advanced learning models.

KIRIN was trained exclusively using data from elite players—just the top 0.008% of Maru-Jan’s 1.6 million members, all maintaining an average finish of 2.30 or better.

Personalize Your Gaming Experience

Customize your session with multiple table mat designs and voice options available in-game. Make the experience uniquely yours.

Review Your Performance with Web Score Function

You can review past games and study strategies anytime—even without launching the app.

Secure Call System to Protect Your Hand

For the first time in any mahjong app, we've introduced full call specification functionality: 1st cry, 2nd cry, and red limited cry settings.

By utilizing these features, only the tiles you wish to declare will show the corresponding button—ensuring your strategy stays hidden from opponents.

Private Tables for Friends

Create a custom table and invite friends or other players to join you for a dedicated match.

All results from participants are recorded, allowing you to host virtual tournaments right from the comfort of your home.

Daily Events and Special Promotions

Maru-Jan is packed with exciting events throughout the year—from weekly recurring challenges to large-scale seasonal tournaments.

With many events offered completely free, players of all levels regularly participate and enjoy the competition. Event schedules and updates are announced directly within the app as they become available.

What's New in Version 22.5.1

Last updated on Jun 24, 2024
・ Minor bug fixes have been implemented.