オンライン麻雀 Maru-Jan

Enjoy a premier online mahjong experience with 1.6 million registered members. Designed for everyone from beginners to seasoned players, the platform also hosts regular free events.

■ Receive complimentary trial points

All new users who download and register through the app will receive free trial points.

■ The leading online mahjong platform with 1.6 million members

Maru-Jan's Google Play app hosts around 8,000 players daily, welcoming all skill levels into active gameplay.

Experience minimal wait times when playing mahjong online with Maru-Jan.

To enhance gameplay comfort, discarded tiles appear about 1.3 times larger on smartphones and tablets, while hand tiles are roughly 1.26 times bigger on phones.

■ Experience Authentic Mahjong

(1) Realistic mahjong tile texture

Each tile features hand-finished details, including careful attention to transparency, light reflection, and light transmission.

(2) True-to-life tile placement

Discarded tiles appear slightly misaligned, creating a realistic feeling when playing.

(3) Manual and automatic tile arrangement

Arrange tiles manually and focus on their alignment for a more immersive experience.

(4) Research into fully automated tables

Our simulation of fully automatic tables replicates natural tile distribution biases.

By using two tile sets mixed on the server, previous game results subtly influence tile distribution in subsequent rounds.

(5) Authentic sound recording

Hear genuine sounds—from tiles clinking and sticks colliding to the table’s mechanical hum.

(6) Streamlined, focused production

A clean, uncluttered design lets you concentrate fully on the match.

(7) High-stakes paid matches

A table fee applies, but finishing in first place waives the cost—adding thrilling tension to every game.

Discover the authentic mahjong experience that defines Maru-Jan.

■ Mahjong AI "KIRIN"

The AI analyzes your hand and suggests optimal discards with relevant statistics.

KIRIN was trained using play data from top-tier players—the top 0.008% of Maru-Jan’s 1.6 million members, with an average finishing position of 2.30 or better.

■ Personalize your experience

Choose from multiple table mats and in-game voices.

Enjoy the game with custom settings that suit your style.

■ Web score review function

Review past games and analyze hands anytime—no need to launch the app.

■ Discreet sound callouts to protect your hand

Maru-Jan is the first mahjong app to feature customizable call settings, including 1st, 2nd, and red-only calls.

Use these call options strategically: the button appears only for tiles you choose to call, keeping your hand private.

■ Private tables for playing with friends

Invite specific players and host matches at set tables.

These private games track everyone’s results, letting you recreate a mahjong tournament from the comfort of home.

Daily events for all players

Maru-Jan offers a packed events calendar—from weekday activities to large-scale tournaments held several times per year.

All events are free to join and attract a diverse community of beginners and advanced players. Check the app for the latest event announcements.