Sign in to create or join an online room, choose your rules and share its invitation link. Play Korean, Riichi, MCR, Sichuan, Guangdong, American or Taiwanese mahjong with friends on desktop and mobile; AI can fill empty seats.
Sign in, create a room and send its invitation link. Friends can join in their browser without installing an app.
One player on a laptop and another on a phone can share the same table.
Start with fewer than four people and let AI take the remaining seats.
No. AI fills any empty seats so you can start right away.
In a room that has had at least two human players, return within the reconnection grace period to reclaim your seat. After it expires, the disconnection is treated as leaving. A host alone with AI has a separate policy: the room pauses and is preserved for up to 72 hours of absence.
All seven rulesets — Korean, Riichi, Chinese Official (MCR), Sichuan, Guangdong, American and Taiwanese — support four-player online tables.
Sign-in is required for online rooms. Friends on desktop, tablet and phone browsers can share the same table.