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Hanafuda: Koi-koi

Posted: 01 February 2016, 20:17
by Een
We are really happy today to release Koi-koi, a two player game of Hanafuda (Japanese traditional cards game).

Image

Hanafuda is very distinctive from Western style cards from the small size of the cards (sometimes called tiles), and from the flower and animal patterns they picture. Each set of four cards matches a month of the year, and depicts flowers and animals associated with that time of the year.

As you might assume, the flow of the game is also quite distinct from Western cards (at least any I have played). On their turn, players will try to "capture" cards by matching pairs from cards on the "field" (eight cards drawn face-up at the start of the round), once with a card from their hand, then once again with the top card from the deck of undistributed cards. If no capture can be made, the card is discarded to the field.

These captures go on until one of the players has created one of many possible special cards combination, called "yaku". At that point, the player must choose either to stop and score the points associated with that yaku, or say "Koi!" (which means "let's go on!") and try to increase his score by improving that yaku or creating another one. But of course, saying "Koi!" is also a big risk, since your opponent will maybe create a yaku of his own and choose to score and end the round before it's your turn again...

This game has a strong component of luck, but you'll quickly discover that it's in fact all about managing your luck (with the stop or Koi! choice, and of course capturing pairs at the right time to advance your game while hindering your opponent) over a period of 12 or 6 rounds (who represent the months of one full year or half a year).

Also, Koi-koi is in fact the first gambling game on BGA! :) Hanafuda was an actual money game in Japanese gambling houses, and our implementation tries to keep that spirit: you start with a specific amount of gold pieces ("Koban") and each time you win or lose, money is exchanged for the score (after applying potential multipliers). So you have two ways of winning: either play through the 12 or 6 months and finish with more money than your opponent, or just quickly run him down by getting all his money very fast!

Koi-koi is a quick and fun game with a very distinctive feel. We encourage you to try it and hope you'll enjoy it!

To conclude this news, we would like to thank the two people that helped this be possible:
  • Brian Hanechak (BrianHanechak) started the development of the game on BGA studio while being locked down at home during a snowstorm, then did a lot of the implementation work, and in the process caused me to study and learn to love Hanafuda;
  • Kelsey Cretcher designed a great set of illustrations for Hanafuda cards and kindly allowed us to use them for the BGA implementation, to which they bring a beautiful and modern look. If you like her work, you can see more of her illustrations on the website http://www.kelseycretcher.com.
A big thank you to both of them!

Re: Hanafuda: Koi-koi

Posted: 01 February 2016, 21:28
by Oso
Nice, I will try it soon!

Could be good too if soon you can add Gostop, it played with Hanafuda cards + jokers and of course... with different scoring.

Re: Hanafuda: Koi-koi

Posted: 01 February 2016, 22:01
by BPS
Really nice to me!
I love that!

However, pictures must be changed to more distinguishable cards than this deck.
Every illustrations have important meanings on each.

Additionally, Captions must be correct.

Why not keep in touch with Japanese people? (or somebody familiar with the Japanese cultures); we can help for the developing-team.

I am waiting for stable versions. and I hope it will implement new card deck. Good luck.

Re: Hanafuda: Koi-koi

Posted: 01 February 2016, 22:08
by Een
Thanks BPS!
We did our best with available information on the internet, but if we made some mistakes (captions, etc.) that are obvious to Japanese people, please sent me a private message with the details so that I can look into that. Any advice would be much appreciated!

Re: Hanafuda: Koi-koi

Posted: 02 February 2016, 00:52
by robotco
Is it possible to add a Korean Go-Stop variant?

Re: Hanafuda: Koi-koi

Posted: 02 February 2016, 03:11
by Oso
robotco wrote:Is it possible to add a Korean Go-Stop variant?
Yes, but Go-stop should be a different game and not just a variant...

Re: Hanafuda: Koi-koi

Posted: 02 February 2016, 05:15
by phrixus
Oso wrote:Nice, I will try it soon!

Could be good too if soon you can add Gostop, it played with Hanafuda cards + jokers and of course... with different scoring.
Completely agree. Gostop(Korean card game with Hanafuda cards) has more aggressive rules and much more fun.

Re: Hanafuda: Koi-koi

Posted: 02 February 2016, 16:46
by Een
phrixus wrote:Completely agree. Gostop(Korean card game with Hanafuda cards) has more aggressive rules and much more fun.
Interesting. Do you have a good reference for rules in English? I currently don't know Gostop.

Re: Hanafuda: Koi-koi

Posted: 02 February 2016, 18:39
by Oso
Een wrote:
phrixus wrote:Completely agree. Gostop(Korean card game with Hanafuda cards) has more aggressive rules and much more fun.
Interesting. Do you have a good reference for rules in English? I currently don't know Gostop.
Rules: http://www.pagat.com/fishing/gostop.html
Wikipedia: https://en.wikipedia.org/wiki/Go-Stop
Super-duper guide in english -with video-: http://www.eatyourkimchi.com/how-to-play-go-stop/

Go-stop in BoardGameGeek: http://boardgamegeek.com/boardgame/17530/go-stop

Re: Hanafuda: Koi-koi

Posted: 02 February 2016, 20:47
by Een
Thanks! This game share a lot of things with Koi-koi, but there is a lot of differences also. This would clearly be another game and not a Koi-koi variant.
If a developer is interested in developing Go-stop, he/she can contact me to get access to the Koi-koi source code and start from there to make the necessary changes for Go-stop.