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What Is Async Mahjong? Play Your Group Without Scheduling

American Mahjong is a beautiful game stuck in an inconvenient century: four people, one table, three hours, every Tuesday — or you don't play. Asynchronous play removes the scheduling, not the game.

The idea

In an async game, there's no shared session. You take your turn — draw, decide, discard — and the game holds exactly where you left it. Your friend in another time zone takes hers over lunch. The fourth finishes the hand on the couch after dinner. A gentle notification tells you when the table needs you; a four-hour window for calls means you have time to think, not pressure to react.

If Words With Friends did this for word games, async Mahjong does it for the tile game: same rules, same friends, none of the calendar Tetris.

What stays the same

Everything about the game itself. Full NMJL-style rules: the Charleston and courtesy passes, calls, joker exchanges, exposures that stay exposed. The hand patterns follow the current card — the app's built-in Card Reference maps all 55 rows across 9 sections, searchable and zoomable, with the hands you're chasing pinned in view.

The formats are the same ones your group knows:

• 4-Player — the complete game, async.
• Double Mahj — two hands at once; first to mahj both wins.
• Quick Play — one rack, one hand, for five-minute gaps.

What changes (for the better)

• The game survives real life. Somebody's traveling, somebody's sick, the grandkids are visiting — the hand waits. A turn left idle for days ends gracefully instead of stranding everyone's evening.
• Your group isn't limited to four schedules. Start a game with a six-character code or a share link; a friend without the app lands on an invite page and the invite travels with them into the app.
• Clubs keep the group together between game days. Your weekly group gets its own club in the app — a board for the talk, events with RSVPs, and monthly and all-time leaderboards.
• Practice doesn't need an audience. Solo games against bots in every format, six practice problems, and four short lessons keep the Charleston fresh between Tuesdays — none of it touches your stats.

The honest part

We'll say it plainly, because it's true: in-person, with four people at a real table, is better. Async isn't a replacement for game day — it's what keeps your group playing on all the days that aren't game day, and what saves the week when the fourth can't make it.

Mahj & Friends is not affiliated with the National Mah Jongg League.