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ULTIMAHJONG

Riichi Mahjong Roguelike. Race an ever-accelerating score counter. Take full advantage of upgrades and usable items to force hands you've only dreamed of over the table. Build the perfect closed hand or make calls with abandon. Take risks, or get lost in the dust.

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Developer
7tk
Publisher
NANAHYAKUMAN
Release
Coming Soon
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Updated: Jul 14, 2026Developer scaleThe operating scale of the game's developer.
Updated: Jul 14, 2026Publisher scaleThe operating scale of the game's publisher.
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Search Google: Is ULTIMAHJONG self-published or published by NANAHYAKUMAN?Publisher statusHow the game's publishing relationship is classified.
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Updated: Jul 14, 2026Release statusWhether and how the game has been released.

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About the Game

ULTIMAHJONG implements standard Riichi Mahjong, and a lot more. Have you ever been fishing Daisangen, only for your boring opponents to hold onto 3 of the white dragons? Now you can slip another into your hand and wow 1 yakuman 32000 points please! Or maybe you're wating on a 3-sou you can't seem to draw. What if you could convert the next sou you drew into a 3? Buying use-items and upgrades will be critical to your success in a run.

NO PRIOR EXPERIENCE REQUIRED!

One of the primary design goals behind ULTIMAHJONG is to introduce Mahjong and its variants to the world. ULTIMAHJONG features extensive text guides accessible from the sidebar at any time. Those already familiar with Riichi can still take advantage of the in-game Yaku reference.

Tile Manipulation!

Changes to tiles are permanent! (Generally!) Maybe you could use a 1-pin now, but do you really want to convert your nice, central 5 into a hard-to-use terminal? Or flip the script, who needs points now when you could have a hand overflowing with 456s?

Play well and you'll get to color your tiles for bonus points! Do you go for the safe, low scoring blue tiles or the low percentage golden quadrupler?

Tilesets!

Accesibility is a must! In addition to the default tileset, an Arabic numeral variant is provided.

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