オンライン麻雀 Maru-Jan

Our online mahjong platform is home to a vibrant community of 1.6 million members. It offers a complete mahjong experience that appeals to everyone from novices to seasoned players. Free events are regularly held for all to enjoy.

■ Free Trial Points Offered

All new users who download and register with the app will receive complimentary trial points as a welcome gift.

■ A Popular Online Mahjong Community with 1.6 Million Members

Maru-Jan's Google Play application sees around 8,000 active players daily, catering to all skill levels from first-timers to experts.

Maru-Jan ensures minimal wait times for online mahjong matches.

To improve gameplay comfort, discards on smartphones and tablets are about 1.3 times larger, and hand tiles on smartphones are enlarged by around 1.26 times.

■ Pursuing the "Real" Mahjong Experience

(1) The tiles have an authentic look and feel.

Every aspect—transparency, light reflection, and light transmission—is meticulously hand-finished.

(2) Even the way tiles are arranged is faithfully reproduced

Experience realistic gameplay, where discarded tiles fall slightly out of alignment, adding to the immersion.

(3) Featuring both automatic and "manual" tile arrangements

Arrange your tiles manually if you prefer. Take your time aligning them carefully before making your move.

(4) Research into fully automatic tables

A simulation of a fully automatic table replicates natural tile distribution biases.

Using two sets of tiles mixed server-side, the distribution from previous rounds slightly influences each new game.

(5) Authentic sounds recorded from real games

Immerse yourself in genuine sounds like tiles clacking, sticks hitting, and the table mechanism in motion.

(6) Clean, distraction-free interface

With no flashy effects, you can focus entirely on the game.

(7) Competitive gameplay typical of paid mahjong

While a table fee applies, finishing in first place waives the fee, making for an intense, high-stakes match.

Discover the authenticity that Maru-Jan is dedicated to delivering.

■ Mahjong AI "KIRIN"

Our AI evaluates tile scores and suggests key statistics and optimal discards.

KIRIN is trained on data from elite players—only the top 0.008% of Maru-Jan’s 1.6 million members, with an average finishing rank of 2.30 or below.

■ Customize to Your Preference

Choose from various table mats and in-game voices.

Enjoy a personalized mahjong experience with your preferred customizations.

■ Web Score Review Function

Analyze past games and study strategies without having to open the app.

■ Conceal your hand while still announcing calls confidently

Maru-Jan introduces the first mahjong app to offer 1st call, 2nd call, and red limited call specifications.

Use these call settings strategically—buttons appear only for tiles you wish to call, keeping your hand hidden.

■ "Set Table" for Playing with Friends

Create a private table and invite others to join your game.

Results from set table games are recorded for all participants, allowing you to host a mahjong tournament from the comfort of home.

Daily Events for Everyone

Maru-Jan features a packed event schedule. From daily weekday events to large-scale tournaments held multiple times per year.

All events are free to enter, and continue to attract a wide audience from beginners to pros. Event details are updated regularly in the app.