Planned Release Date: Aug 20, 2026

About This Demo

This is not cheating—it's magic!

Senpo Mahjong is a new kind of riichi mahjong where spells called "Skills" bend the game to your will.
This demo lets you play the heart of the game—a match with Skills—as many times as you like, with no account and no internet connection.

What's in the demo

• East-only match with Skills — 4-player mahjong against three CPU opponents, with no limit on how many times you play
  
• Try all 8 characters — each one brings a different set of three Skills. In the demo, you can freely pick any character for every match
  
• No sign-up, fully offline — no login, no connection. Launch it and you're at the table
  
• Japanese voice acting, 5 languages — English / Japanese / Simplified Chinese / Traditional Chinese / Korean

Skill System

• 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

Visuals

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

In the full game

• 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
  
• Spectating & replays — watch other tables, or review your own games move by move
  
• Bond with characters — share the table, raise affinity, and unlock outfits and skill customization

Note: In the full game, you start by choosing one character for free.

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.