Riichi Mahjong

Multiplayer Riichi Mahjong. Contains extra features and semi-progression

418 Downloads

fabricforgeneoforgedecorationminigametechnology

Rent Server with this Mod

Screenshots

About this Mod

Riichi Mahjong

Riichi Mahjong adds a fully playable Riichi Mahjong table to Minecraft for both NeoForge and Fabric.

Features

Full Riichi Mahjong ruleset with all yaku and specific rules (even chankan)
Rule presets (Mahjong Soul / Tenhou / WRC)
1..4 player modes - bots fill empty seats
Mahjong altar: craft items by scoring playing mahjong (what?)
Yaku generator: generate RF energy by playing mahjong (what?)
Fake mahjong: another game which was called mahjong for some reason
FOV normalizer: enforce FOV in the area
Achievements

Dependencies

Minecraft 1.21.1
NeoForge 21.1.215+ or Fabric (loader 0.19.2+, Fabric API 0.116.11+)
Architectury API 13.0.8+
On Fabric: Team Reborn Energy 4.1.0 (bundled)

Recipes are balanced for vanilla - no extra dependencies required.

Available Versions

Riichi Mahjong Forge 0.4.1release

MC 1.21.1fabric

May 12, 2026

Riichi Mahjong Forge 0.4.1release

MC 1.21.1neoforge

May 12, 2026

Riichi Mahjong Forge 0.4.0release

MC 1.21.1fabric

May 12, 2026

Riichi Mahjong Forge 0.4.0release

MC 1.21.1neoforge

May 12, 2026

Riichi Mahjong Forge 0.3.2release

MC 1.21.1fabric

May 10, 2026

How to Install Riichi Mahjong on Your Server

Order Server

Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).

Set fabric Loader

In the panel under "Egg", select the fabric loader and matching Minecraft version (1.21.1).

Install Mod

Open the mod browser in the dashboard and search for "Riichi Mahjong". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.

Compatibility

Mod Loaders

fabricforgeneoforge

Minecraft Versions

1.21.1, 1.20.6, 1.20.5 (+4 more)

Server-side

✓ Required

Recommended RAM

4 GB(min. 3 GB)

Frequently Asked Questions

Riichi Mahjong server crashes on startup – what to do?

Most common cause: wrong fabric version or insufficient RAM. Check the server log (latest.log) for "OutOfMemoryError" or "Mixin" errors. With Mado Hosting: ensure at least 3 GB RAM is allocated and the loader matches the mod version (1.21.1). You can switch loaders with one click in the panel.

Is Riichi Mahjong compatible with fabric and forge and neoforge?

Riichi Mahjong officially supports fabric, forge, neoforge for Minecraft 1.21.1, 1.20.6, 1.20.5. Note: Forge and Fabric mods are NOT cross-compatible – pick one loader and stick with it. The Mado dashboard automatically detects incompatible loader combinations.

Server lagging with Riichi Mahjong – how to optimize performance?

Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if Riichi Mahjong consumes the most tick time. Common fixes: reduce server view-distance to 8-10, install "performant" or "starlight" as supplementary mods on Forge. With Mado Hosting, your server runs on NVMe SSDs with dedicated CPU cores for minimal latency.