"This is not cheating—it's magic!" Online mahjong with Skills: see through opponents' hands, control your draws, boost your score. Skills cost MP—timing your trump card decides the game. Real-time 3D tables, 4P & 3P modes, CPU practice, spectating, replays, private rooms, and ranked play.

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This game is not yet available on Steam

Planned Release Date: March 2027

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About This Game

This is not cheating—it's magic!

Senpo Mahjong is a new kind of online riichi mahjong where spells called "Skills" bend the game to your will.
See through your opponents' hands. Control your draws. Conjure dora out of thin air and send your score soaring.
On top of raw mahjong skill, every match adds a layer of mind games—when, and which, Skill do you unleash? A battle of wits you'll find nowhere else awaits.

Skill System

  • A diverse arsenal of Skills — three schools: Information (peek at opponents' hands), Tile Manipulation (control draws and tiles), and Scoring (boost your points)
  • MP management — Skills consume MP that builds up during the match. Timing your trump card decides the game
  • Cut-in animations — every Skill activation is revealed to the whole table with flashy effects. Whoever masters the exchange of Skills takes the win

Game Modes

  • Online matches — real-time 4-player and 3-player mahjong
  • Ranked — climb the ladder of treasures from novice all the way to the top rank: Senpo King
  • Private rooms — create a room and play with friends only
  • CPU matches — hone your Skills solo at your own pace
  • Spectating & replays — watch other tables, or review your own games move by move

Characters

Choose your partner from a colorful cast of characters. Each one has their own signature Skills and outfits—share the table, deepen your bond, and unlock new powers.

Visuals

A beautifully rendered 3D table with stylish UI and effects. Feel the tension of every single tile, right on your desktop.

AI Generated Content Disclosure

The developers describe how their game uses AI Generated Content like this:

This game uses generative AI for some of its content.

- 2D artwork: Some illustrations and icons, including the character portraits, were created with image-generation AI, then selected and hand-retouched by the developer before being included. The same applies to the images used on this store page.
- Text: Languages other than Japanese (English, Simplified Chinese, Traditional Chinese, Korean) are based on translations produced with a large language model.

Generative AI was not used for the music, sound effects, character voices, or 3D models. Those are licensed tracks and sound effects, recordings by voice actors, and models we made ourselves.

Generative AI is used only during development. The game never generates content with AI while you play, and it never connects to an external AI service.

System Requirements

    Minimum:
    • Requires a 64-bit processor and operating system
    • OS: Windows 10 64-bit (version 1809 or later)
    • Processor: Intel Core i3-6100 / AMD Ryzen 3 1200 or equivalent (2 GHz dual-core or better, 64-bit required)
    • Memory: 4 GB RAM
    • Graphics: GPU with WebGL 2.0 support (Intel HD Graphics 620 or equivalent, 1 GB VRAM)
    • DirectX: Version 11
    • Network: Broadband Internet connection
    • Storage: 1 GB available space
    • Sound Card: DirectX compatible (onboard audio supported)
    Recommended:
    • Requires a 64-bit processor and operating system
    • DirectX: Version 11
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