How Blitz Jong plays
Blitz Jong is real-time riichi mahjong with no turns: all four players draw and discard at the same time. Each discard opens a claim window of a few seconds in which the whole table may declare, and whether you can act at all depends on your stamina. Tile efficiency, yaku and reading the discards — the hand building you already know still decides who wins. Only the tempo is new. Free to play in your browser.
How it differs from turn-based riichi
| Standard riichi | Blitz Jong | |
|---|---|---|
| Turn order | One player at a time; you wait for your turn | No turns — all four act at once |
| Drawing | Automatic when your turn comes | You press to draw, and every draw costs stamina |
| Calls | Asked in seat priority, one after another | A claim window opens; the table declares at once and every claim resolves together |
| The wall | One wall shared by the table | Split four ways — you draw only from your own |
| After a win | The hand ends | The winner scores and steps out; the rest play on until the walls run dry, so a hand can have several winners |
| What constrains action | Turn order | Your stamina |
| Length of a hand | A few minutes | 90–150 seconds |
| Tile theory and yaku | Standard riichi rules | Identical — yaku, fu and han, furiten, kuitan, ippatsu and ura dora all stand |
Getting started
- Open www.blitzjong.com and select Play. You can take a seat before creating an account.
- Bots fill any empty seats, so a table starts immediately.
- You cannot draw with an empty stamina bar. Avoid spending it all at once; keep a reserve for the call you will want to make.
- Every discard stays lit for a few seconds. If you can chii, pon, kan or ron it, the corresponding button appears on its own.
- After a period of inactivity the seat plays automatically; any input returns it to manual control.
Features
- Ranked play across five tiers, with demotion protection in the lower ones.
- Replays of every match, scrubbable second by second from any of the four seats.
- Daily tasks and a reward for a consistent week.
- Cosmetics: tile faces, tile backs, riichi sticks, table felt, music.
- English, Simplified Chinese and Japanese — interface and call voices alike.
- Browser, Steam and Android share the same servers: one account, one rank.
Frequently asked questions
Is Blitz Jong free?
Yes. Everything that touches the game — rules, ranked, replays — is open to everyone. The only things sold are cosmetics: tile faces, tile backs, riichi sticks, table felt and music. Nothing that changes how a match reads is ever for sale.
Do I need to download anything?
No. Open www.blitzjong.com in a browser and you are at a table. If you want an installed build there is a Steam version, and an Android APK on the front page.
When does the Steam version come out?
September 22, 2026. The browser version is playable right now, and both run on the same servers with one account and one rank.
Are the rules the same as normal riichi mahjong?
The hand building is identical: the same yaku, the same fu and han, furiten, kuitan, riichi with ippatsu and ura dora. What changes is that there are no turns, and the rules that used to be measured in one go-around — furiten, ippatsu — are measured in seconds instead.
What kind of mahjong is this?
Japanese mahjong, also called riichi mahjong: four players, 136 tiles, yaku and dora, and riichi declarations. It is not Chinese Official (MCR) mahjong, nor a regional variant such as Sichuan or Cantonese mahjong.
How is it different from Mahjong Soul or Tenhou?
The rules are the same Japanese riichi mahjong, with the same yaku and the same scoring, so the tile theory you built there carries over directly. What differs is the structure of a hand: those games are turn-based and you act when your turn comes, while Blitz Jong has no turns. All four players draw and discard at once, every discard opens a claim window of a few seconds, and stamina decides whether you can act. Blitz Jong is not affiliated with those games; their names are trademarks of their respective owners.
What is stamina?
A bar that refills over time. Drawing costs stamina and so does every call. Spend it all racing to tenpai and you may be the one who cannot move when the tile you needed finally lands. How much to keep in reserve is the decision you make over and over.
What is a claim window?
The few seconds a discard stays live after it hits the table. During that moment the whole table can declare chii, pon, kan or ron at once. When the window closes every claim resolves together, and whoever acted first takes the tile.
How long is a match?
A hand runs about 90 to 150 seconds. The default is an East-only match of four hands; rooms can be set to a half-game.
Is there ranked play and are matches recorded?
Both. Ranked runs across five tiers with demotion protection in the lower ones, and every match is saved as a replay you can scrub second by second and watch from any of the four seats.
Can more than one player win the same hand?
Yes. A winner scores and steps out while everyone else keeps playing until the walls run dry, so several players can win the same hand.
Can I play on a phone?
Yes. The browser version works on phones, and there is an Android build on the front page.
What languages does it support?
English, Simplified Chinese and Japanese, interface and call voices alike.
What happens if I disconnect?
Your seat is taken over in a defence-only mode — it stops drawing and stops calling — and you pick up where you left off when you reconnect.
Do I need to know mahjong already?
Blitz Jong assumes you know standard riichi. If you have never played, learn ordinary riichi mahjong first; the tempo here is much easier to pick up than the tile theory underneath it.