Riichi Mahjong

Japanese four-player mahjong: declare riichi, you need a yaku to win.

Opens in a full-screen view over the page. Nothing to install.

Keyboard input is captured while you play. Press Esc or hit Exit to come back to the page. This game streams its voice-over audio on demand.

Boss key: tap Esc three times fast to bring up a work screen; do it again to come back.

Screenshots

Riichi Mahjong — free online Board game

Japanese four-player mahjong: declare riichi, you need a yaku to win.

Riichi Mahjong is the Japanese style of four-player mahjong, free to play in your browser with no download and no sign-up. Play an East-only game against three computer opponents: a closed waiting hand declares riichi automatically, and every winning hand needs at least one yaku, from yakuhai and tanyao to pinfu, flushes and yakuman.

japanese mahjong
riichi
tile game
vs computer

How to play Riichi Mahjong

A winning hand is four melds and a pair, and must contain at least one yaku.
With a closed hand that is one tile from winning (tenpai), riichi is declared automatically.
Common yaku include yakuhai (dragon or wind pungs), tanyao (all simples) and pinfu.
This version plays an East-only round, and a session is 13 hands.

Frequently asked questions

Do I need a yaku to win?

Yes. Every winning hand needs at least one yaku.

Is Riichi Mahjong free?

Yes. It is free to play in your browser against three computer opponents.