# Riichi

**Source:** https://www.startuphub.ai/startups/riichi
**Profile type:** Startup

> Japanese four-player mahjong in your browser, playable on PC and mobile.

## About

Riichi provides a zero-friction, browser-based platform for playing Riichi Mahjong, the Japanese variant of the game. It offers interactive tutorials for beginners, a daily challenge trainer for skill development, and the ability to play against AI or live players worldwide without registration or downloads. The service is built for both learning and competitive play, serving individuals interested in mastering or enjoying Riichi Mahjong.

## Key facts

- **Slug:** riichi
- **Website:** https://riichimahjong.com
- **Founded:** 2017-05-07
- **Operating status:** Active
- **Sectors / tags:** Board Games, Browser Games, Casual Games, Mahjong, Online Multiplayer

## Frequently asked

### What does Riichi do?

Riichi provides a zero-friction, browser-based platform for playing Riichi Mahjong, the Japanese variant of the game. It offers interactive tutorials for beginners, a daily challenge trainer for skill development, and the ability to play against AI or live players worldwide without registration or downloads. The service is built for both learning and competitive play, serving individuals interested in mastering or enjoying Riichi Mahjong.

### When was Riichi founded?

Riichi was founded in 2017.

### What industry does Riichi operate in?

Riichi operates in Board Games, Browser Games, Casual Games, Mahjong, Online Multiplayer.

## JSON-LD

Structured data aligned with this page's `<script type="application/ld+json">` (included when the profile is server-rendered).

```json
{
  "@context": "https://schema.org",
  "@graph": [
    {
      "@type": "BreadcrumbList",
      "itemListElement": [
        {
          "@type": "ListItem",
          "position": 1,
          "name": "Home",
          "item": "https://www.startuphub.ai"
        },
        {
          "@type": "ListItem",
          "position": 2,
          "name": "Startups",
          "item": "https://www.startuphub.ai/startups"
        },
        {
          "@type": "ListItem",
          "position": 3,
          "name": "Riichi",
          "item": "https://www.startuphub.ai/startups/riichi"
        }
      ]
    },
    {
      "@type": "ProfilePage",
      "@id": "https://www.startuphub.ai/startups/riichi#webpage",
      "url": "https://www.startuphub.ai/startups/riichi",
      "name": "Riichi - AI Startup Profile | StartupHub.ai",
      "description": "This is the official profile of Riichi. Riichi is a startup founded in 2017, operating in Board Games and Browser Games. Japanese four-player mahjong in your browser, playable on PC and mobile.",
      "dateModified": "2026-07-29T06:17:28.282+00:00",
      "mainEntity": {
        "@id": "https://www.startuphub.ai/startups/riichi#organization"
      }
    },
    {
      "@type": "Organization",
      "@id": "https://www.startuphub.ai/startups/riichi#organization",
      "name": "Riichi",
      "url": "https://riichimahjong.com",
      "logo": "https://cdn.startuphub.ai/storage/v1/object/public/entity-images/logos/431e80ef-97dc-4cbc-a716-e74847cad7f0-square.webp",
      "image": "https://cdn.startuphub.ai/storage/v1/object/public/entity-images/logos/431e80ef-97dc-4cbc-a716-e74847cad7f0-square.webp",
      "description": "This is the official profile of Riichi. Riichi is a startup founded in 2017, operating in Board Games and Browser Games. Japanese four-player mahjong in your browser, playable on PC and mobile.",
      "sameAs": [
        "https://www.startuphub.ai/startups/riichi"
      ],
      "foundingDate": "2017-05-07",
      "knowsAbout": [
        "Board Games",
        "Browser Games",
        "Casual Games",
        "Mahjong",
        "Online Multiplayer"
      ]
    }
  ]
}
```