Create Tenhou account
It's easy!
This video explains how to play on Tenhou, the popular Japanese riichi mahjong platform, in English using a browser extension.
Instruction Movie Created by Nima

Nima's Profile
I started playing mahjong in 2015 and joined the competitive mahjong community in 2017. Known as "Light Grunty" online, I made a series of videos aimed at teaching new players the basics of mahjong.
Tenhou.net is the one of the most popular online mahjong service in Japan. Free-to-play browser-based online Reach Mahjong site.
Tenhou
Do you know how to enjoy playing Tenhou?
Type of Lobbies
No
Yes
Off
Ranking Match
Lobby
Allows players with same
IP address
Affects
ranking/rate
Chat
Private
Lobby
Yes
No
On
Dependant on lobby settings
No
On
Tournament
Lobby
Type of Games
Ranking Match Ippan
Up to 4dan and R1800
Ranking Match Joukyuu
At least 1kyuu and up to 7dan and R2000
Ranking Match Tokujou
At least 4dan and R1800
Ranking Match Houou
At least 7dan and R2000;
requires paid subscription
Rules for 4-player Ranking Match
Rules
Rules for 3-player Ranking Match