オンライン麻雀 Maru-Jan
Dive into the world of online mahjong with Maru-Jan, a platform that proudly boasts 1.6 million members. Whether you're a beginner or an advanced player, Maru-Jan offers a full-fledged mahjong experience. The app hosts free events regularly, adding to the excitement and engagement of its community.
■ Presenting Free Trial Points
New to Maru-Jan? Download the app and register to receive free trial points, ensuring everyone can start playing without any initial investment.
■ Popular Online Mahjong Boasting 1.6 Million Members
Maru-Jan's Google Play app version is bustling with activity, attracting around 8,000 players daily. This vibrant community spans from beginners to advanced players, ensuring short waiting times for engaging in online mahjong. For a more comfortable gaming experience, Maru-Jan enhances the visual clarity by making discarded tiles on smartphones and tablets approximately 1.3 times larger and hand tiles on smartphones about 1.26 times larger.
■ Challenging the "Real" Mahjong
Maru-Jan is committed to delivering an authentic mahjong experience:
(1) The texture of the mahjong tiles is meticulously crafted to mimic the real thing, with hand-finished details like transparency, light reflection, and light transmission.
(2) The app replicates the realistic arrangement of tiles, including slight misalignments in discarded tiles to enhance the tactile feel of the game.
(3) Beyond automatic tile arrangement, Maru-Jan also offers manual tile placement, allowing players to arrange their tiles with precision and attention to alignment.
(4) The app conducts research on fully automatic tables, simulating the bias of tiles through a program that uses two sets of tiles on the server, ensuring that the distribution of tiles from previous games subtly influences the next game.
(5) Sounds are recorded from actual mahjong games, providing players with the realistic sounds of tiles and sticks clashing and the table running.
(6) Maru-Jan keeps production simple, allowing players to focus purely on the game without distractions from flashy effects.
(7) The app offers a serious gaming environment where players pay a place fee, but achieving 1st place makes it free, adding a thrilling competitive edge.
Experience the "real" mahjong that Maru-Jan meticulously crafts for its players.
■ Mahjong AI "KIRIN"
Maru-Jan's AI, "KIRIN," analyzes tile scores and suggests optimal tile casting based on various numerical values. The AI is trained exclusively on data from top-class mahjong players, representing the top 0.008% of Maru-Jan's 1.6 million members, with an average finish order of 2.30 or less.
■ Customize to Your Liking
Personalize your gaming experience with a variety of table mats and voices available within the app. Enjoy the game with your preferred customization settings.
■ Web Score Function
Review and study your games without needing to launch the app, thanks to the web score function.
■ You Can Specify the Sound Without Worrying About Your Hand Being Exposed
Maru-Jan introduces innovative features like the 1st cry, 2nd cry, and red limited cry specification functions, allowing players to use cries strategically without revealing their hands. The app displays buttons only for the tiles you want to cry, ensuring a discreet gameplay experience.
■ "Set Table" Where You Can Play with Your Friends
Invite friends to play on a set table, where you can enjoy mahjong together. The set table keeps track of all participants' results, making it feel like hosting a mahjong tournament from the comfort of your home.
Maru-Jan is packed with events, from daily to large-scale annual events. These free-to-attend events are popular among both beginners and advanced players, with event information regularly updated within the app.
What's New in the Latest Version 22.5.1
Last updated on Jun 24, 2024. Minor bugs have been fixed to enhance your gaming experience.
オンライン麻雀 Maru-Jan





Dive into the world of online mahjong with Maru-Jan, a platform that proudly boasts 1.6 million members. Whether you're a beginner or an advanced player, Maru-Jan offers a full-fledged mahjong experience. The app hosts free events regularly, adding to the excitement and engagement of its community.
■ Presenting Free Trial Points
New to Maru-Jan? Download the app and register to receive free trial points, ensuring everyone can start playing without any initial investment.
■ Popular Online Mahjong Boasting 1.6 Million Members
Maru-Jan's Google Play app version is bustling with activity, attracting around 8,000 players daily. This vibrant community spans from beginners to advanced players, ensuring short waiting times for engaging in online mahjong. For a more comfortable gaming experience, Maru-Jan enhances the visual clarity by making discarded tiles on smartphones and tablets approximately 1.3 times larger and hand tiles on smartphones about 1.26 times larger.
■ Challenging the "Real" Mahjong
Maru-Jan is committed to delivering an authentic mahjong experience:
(1) The texture of the mahjong tiles is meticulously crafted to mimic the real thing, with hand-finished details like transparency, light reflection, and light transmission.
(2) The app replicates the realistic arrangement of tiles, including slight misalignments in discarded tiles to enhance the tactile feel of the game.
(3) Beyond automatic tile arrangement, Maru-Jan also offers manual tile placement, allowing players to arrange their tiles with precision and attention to alignment.
(4) The app conducts research on fully automatic tables, simulating the bias of tiles through a program that uses two sets of tiles on the server, ensuring that the distribution of tiles from previous games subtly influences the next game.
(5) Sounds are recorded from actual mahjong games, providing players with the realistic sounds of tiles and sticks clashing and the table running.
(6) Maru-Jan keeps production simple, allowing players to focus purely on the game without distractions from flashy effects.
(7) The app offers a serious gaming environment where players pay a place fee, but achieving 1st place makes it free, adding a thrilling competitive edge.
Experience the "real" mahjong that Maru-Jan meticulously crafts for its players.
■ Mahjong AI "KIRIN"
Maru-Jan's AI, "KIRIN," analyzes tile scores and suggests optimal tile casting based on various numerical values. The AI is trained exclusively on data from top-class mahjong players, representing the top 0.008% of Maru-Jan's 1.6 million members, with an average finish order of 2.30 or less.
■ Customize to Your Liking
Personalize your gaming experience with a variety of table mats and voices available within the app. Enjoy the game with your preferred customization settings.
■ Web Score Function
Review and study your games without needing to launch the app, thanks to the web score function.
■ You Can Specify the Sound Without Worrying About Your Hand Being Exposed
Maru-Jan introduces innovative features like the 1st cry, 2nd cry, and red limited cry specification functions, allowing players to use cries strategically without revealing their hands. The app displays buttons only for the tiles you want to cry, ensuring a discreet gameplay experience.
■ "Set Table" Where You Can Play with Your Friends
Invite friends to play on a set table, where you can enjoy mahjong together. The set table keeps track of all participants' results, making it feel like hosting a mahjong tournament from the comfort of your home.
Maru-Jan is packed with events, from daily to large-scale annual events. These free-to-attend events are popular among both beginners and advanced players, with event information regularly updated within the app.
What's New in the Latest Version 22.5.1
Last updated on Jun 24, 2024. Minor bugs have been fixed to enhance your gaming experience.