Is Koi Koi Mahjong on Steam?

No. Koi Koi Mahjong is not distributed on Steam, so there is no Steam Charts or SteamDB player count for it. Its live popularity is tracked here via Twitch viewership instead.

What platforms is Koi Koi Mahjong on?

Koi Koi Mahjong is available on Neo Geo Pocket Color.

When did Koi Koi Mahjong release?

Koi Koi Mahjong was first released on January 1, 2000.

Koi Koi Mahjong

Jan 1, 2000PuzzleNeo Geo Pocket Color

Koi Koi Mahjong — frequently asked questions

Is Koi Koi Mahjong on Steam?: No. Koi Koi Mahjong is not distributed on Steam, so there is no Steam Charts or SteamDB player count for it. Its live popularity is tracked here via Twitch viewership instead.
What platforms is Koi Koi Mahjong on?: Koi Koi Mahjong is available on Neo Geo Pocket Color.
When did Koi Koi Mahjong release?: Koi Koi Mahjong was first released on January 1, 2000.

About Koi Koi Mahjong

Koi Koi Mahjong is a Miscellaneous game, developed and published by Visco, which was released in Japan in 2000

Summary via IGDB.

Game details

Publisher: Visco Corporation

Details via IGDB.

Collector value & authenticity

Neo Geo Pocket Color · PriceCharting sold data · Verified 2026-08-07

Loose

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Complete

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Sealed

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Region: JP
Released: 2000
Authenticity: Low

Never re-released — the original cartridge is the only way to playLow counterfeit risk

Neo Geo Pocket Color prices, all games & how to spot a fake

A Visco hanafuda and mahjong title with no recorded market whatsoever.

Released by Visco in September 2000, late enough that the print run was almost certainly small. It supports two-player link play, which is the most that can be said about it with confidence.

Unlike most of the Japan-only tail it has left almost no trace in price databases, which is itself unusual — even obscure cartridges normally surface eventually.