17 Steps

17 Steps is a fast-paced, strategy-dense mahjong duel based on the classic Japanese variant known as the 17-Step Showdown.

A Match Decided in 17 Moves

At the start of each round, you're dealt 34 tiles — but you must choose only 13 as your starting hand.

Play it safe, or go all-in — your decision defines the entire match.

Once both players lock in their hands, the countdown begins:
17 turns. One draw, one discard each turn.

Fail to win within 17 steps, and the round ends in a draw.

No pon. No chi. No kan.
No tsumo — only ron.

Everything unnecessary is stripped away, leaving only the essence of mahjong:
efficiency, reading your opponent, and pressure.

Authentic Japanese Mahjong Depth

The game features a full range of classic yaku, including:
Riichi, Menzen, Pinfu, Chiitoitsu, Yakuhai, Honitsu, Chinitsu

Along with yakuman hands such as:
Kokushi Musou, Suuankou, and Daisangen

Authentic rules like Red Dora, Mangan restrictions, Suji Furiten, Ippatsu, and Haitei are fully implemented.

Ways to Play

• AI opponents across multiple difficulty levels

• Online matches with Steam friends

• Single-round or point-based modes with customizable starting scores

Full Localization

Simplified Chinese / Traditional Chinese / English / Japanese / Korean / Spanish / Russian

Inspired By

Inspired by the legendary “17 Steps” match from Kaiji.

Under extreme turn pressure, a single mistake can decide everything.

Who Is This For?

• Players who want a quick 5-minute match

• Mahjong fans who love deep strategy

• Anyone looking for a fresh competitive twist

Step up!  Make your 17 moves count.