This project is in development.

The game lets you play 12 rounds of koi-koi against a computer opponent.

Planned feature are:
- Adding background music and improve the quality and variety of sound effects
- Replacing the placeholder UI menus with proper ones
- Improving the help page
- Improve feedback for valid and invalid moves
- Adding interactive tutorials for new players
- Adding online play
- Improving performances and polish
- Adding custom rule options
- Adding custom cards textures options

Claves sfx (CC-BY 3.0):
Taiko sfx (CC-BY 3.0):
Koto sfx (CC0 1.0):

StatusIn development
PlatformsWindows, HTML5
Rated 4.8 out of 5 stars
(5 total ratings)
GenreCard Game
Made withUnity
TagsBoard Game, Casual, Colorful, hanafuda, koikoi, Mouse only, Non violent, Turn-based, Unity
Average sessionA few minutes


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Development log


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can open source?

(1 edit)

Can you make an APK version? I love this game but I would like to play it on my phone if possible.

It would be nice to have a tutorial for those who've never played the game before and are just stumbling upon it via this game

Thank you for making this! I was looking for a way to play electronically and this fits the bill perfectly :)

I would love to see this finished. It's a very pretty version with smooth animations so would be amazing with the full features.

So I can mouse navigate the menus, but I'm not sure how to make the cards move? is that normal? 

Yes, I'm sorry the game is lacking in giving feedback to the player.
To play you need to click on the card in your hand to select it (it should move up), then click on a card on the field that matches with it (no feedback here, sorry, but try to find a matching flower or plant, or use a hanafuda suit cheatsheet).
If you cannot or simply want to add your card to the field then click on an empty space (But it will not work if the card has a matching pair on the field).
You then have to play the card on the top of the deck again by matching it if possible or add it to the field.
When you score a combo, a popup appears showing you the score you can make and you can either end the round to collect the points, or call KoiKoi to keep player and try to score higher but risk loosing to the opponent.

This game is fantastic, looking forward to the planned features being implemented!

Thank you!
I'm sorry I haven't had much free time to keep working on the game, so the planned features are still a long way off, but I'm glad you're enjoying it!

Cool. Now I can play Koi Koi without re-downloading Yakuza Like a Dragon

Thanks, I'm glad you're enjoying my little game!

Other than Earth Cards filling me with a primal rage I never knew existed until now, I enjoyed it; fun game.

Thank you for your comment, it makes me happy to see people enjoy my game.