
A modern take on the traditional Japanese card game Hanafuda, featuring both competitive multiplayer and solitaire with intuitive gameplay that's easy for beginners to enjoy.
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About
Battle Hanafuda is a video game based on the traditional Japanese card game Hanafuda.
Experience the depth and fast-paced excitement of Hanafuda with maximum accessibility and ease of play.
Supports the popular Hanafuda games Koi-Koi, the thrilling Oicho Kabu, and Hana Klo (solitaire).
Designed so that even complete beginners can enjoy Hanafuda from their very first match.
Features such as hand highlights, automatic card recognition, and intuitive visual guidance help you learn naturally while playing.
Easily see when you're just one card away from completing a scoring hand and enjoy the excitement of strategic decision-making.
Supports Online Multiplayer. (Koi-Koi)
In addition to everything included in the demo, the full version includes:
Online Multiplayer (always available)
Arcade Mode
Watch Mode (spectate AI vs. AI matches)
Hard Mode (challenge a stronger AI)
No-Sake Mode (CPU matches with the Sake Cup card disabled)
Oicho Kabu - A blackjack-inspired game played with Hanafuda cards.
Hana Klo - A Klondike-inspired solitaire game played with Hanafuda cards.
Steam Achievements
Steam Leaderboards
Steam Cloud Saves
Mouse and Steam Deck touch input support
Music Room
In-game rule reference for both Koi-Koi, Oicho Kabu and Hana Klo
A stage-based single-player mode.
Earn money by winning matches and spend your funds to continue after defeat.
Manage your resources carefully and aim to clear all stages.
Current Beta Content: Stages 1–3 are available.
Play the following games:
Koi-Koi (Nintendo-style rules plus an optional No-Sake variation)
Oicho Kabu - A blackjack-inspired game played with Hanafuda cards.
Hana Klo - A Klondike-inspired solitaire game played with Hanafuda cards.
Detailed rules for each game can be viewed from the in-game Configuration menu.
Watch matches between the Normal and Hard AI.
Recent match logs can be viewed in watch.log inside the save directory via Steam's Browse Local Files option.
The log contains various metrics showing why the Hard AI selected each move.
You might even enjoy analyzing watch.log using generative AI tools.
Note: The Hard AI is still being refined and will continue to receive improvements throughout Early Access.
We welcome feedback and analysis from the community.

Quick Match
Match with a random opponent online.
Friends Match
Match online with players on your Steam Friends list.
Create Private Room
Create a private room using a custom ID and invite other players to join.
(Share the room ID via chat or other means.)
Join Private Room
Join an existing room by entering its ID.
Log
View the results of your last 12 online matches and check your opponents’ Steam profiles.
A Private Room ID is created by choosing any 6-character code.

During online matches, to maintain a fast-paced experience, the pause function and hand list are disabled, and all inputs are subject to a time limit.
The game's soundtrack is powered by the YM2612 (OPN2) sound chip used in the VGS-X platform.
The Music Room allows you to preview tracks while viewing a piano-style keyboard display.

Beginners who’ve always wanted to try Hanafuda
Players looking for a quick, two-player battle game
Fans of Japanese-style, strategy, and mind-game experiences
People who enjoy tabletop games like poker or mahjong
You are free to create and publish content using this game (including gameplay videos, live streams, articles, social media posts, and fan works / derivative works) without obtaining prior permission.
This applies to both commercial and non-commercial use, including monetized content.
However, redistribution or reuse of in-game assets (such as graphics, audio, or music files) as standalone materials is not permitted.
Credit Example: Battle Hanafuda © 2025-2026 SUZUKI PLAN
Genres
Stats
All-time low is the lowest price we've recorded for this game since we started tracking it.
Languages: English
Reviews
Very well-made casual koi-koi game, perfect for people just getting started with hanafuda or people who love koi-koi and wanna play it online! (Please buy this game please I need more people to play with🙏🙏🙏🙏🙏🙏🙏🙏)
At the moment this is a simple, but very promising Hanafuda/Koi-Koi game. Visuals are minimalist but add a great vibe and have a lot of flare, the music is very memorable too. Excited to see what new modes get added eventually! If you're even a little bit interested in Hanafuda, pick this one up!
Exactly the hanafuda game I've always wanted! Nice clean UI/UX, fun animation effects, and the retro PC "hidden gem" vibes are off the charts -- hugely recommend! Love the simplified pixel art, and the combination of highlighting possible matches with numbering on the cards makes it really beginner friendly -- matches against the AI give you lots of practice, and you can speed up the animations to whizz through short games of 2 or 4 rounds to get a feel for it Excited to see what the rest of EA and an eventual 1.0 release offer! It's honestly already got most of what I'd want in a koi koi game, but I'd love a "X Number of Players Online" indicator for online play and/or the ability to host open rooms for anyone to join, since at present I just open matchmaking and let it sit there for a while before giving up and playing some AI matches Other bonus stuff I think would be cool: unlockable play backgrounds/borders (since I love the art style), unlockable card backs, more music (current tracks are great!), customizable avatars (although the lofi use of your Steam icon is a neat trick) Side note: the devs say they're planning mouse support but works fine for me right now on Windows -- Steam Deck also plays really smoothly with minimal battery use so a great on-the-go title as well
Great! More people should learn Hanafuda!
Before reading: If you are interested in Hanafuda and playing this game I recommend watching Summer Wars. It won't help you figure out the game but it is a great film that includes elements of Hanafuda in it. Additionally, it is also a great story and slice of life in general. The Review: Have you ever wanted to learn more about Japanese culture and history while having a good time? Well Hanafuda is the way to go. This game is great compared to other versions of Hanafuda on steam (looking at you Hololive Hanafuda). After all, this was (technically) the first Nintendo game made by Fusajiro Fukui. This is a traditional take on Hanafuda and makes it a great start for any new players. It is a relatively easy game to play and one that has beautiful cards. The cards are called Flower Cards and there are 48-cards in the deck representing different months. The point system is fairly easy to understand. If you score anything above 7 it multiplies x2. Heres the more important part, how is the game? Well it is in early access as of writing this in the month Iris of 2026. The story is very short and supposedly at the end, the developer has wasted 200 hours on another card game??? Wondering if the developer wasted time on Yu-Gi-Oh! Pokémon, or MTG. They remain anonymous about this fact... yet I am curious. Hanafuda: I am now realizing that the developer included rules on how to play the game which is really nice. I went into this game already knowing how to play and did not look for instructions. But there are instructions which is a plus. However, I do wish that the instructions were on the main menu rather than the configuration settings. (By the way, when you open this menu up it is then spelled "Configulation." I honestly think Configulation is a cooler word.) There's a No Sake game mode. I recommend all new players to play this. The Sake can really mess up the flow. Its essentially an automatic win if you don't know what cards to target and or prevent the opponent from winning. The Art: The game has a classic retro theme and some people may not like this. At first, it was hard to tell which card goes to which but after 4 minutes I got use to it. This may be a problem for new players getting into Hanafuda. My advice is to look at real Hanafuda cards online. There are many websites that are helpful in showing how to score points and each month in Hanafuda. I personally love the retro look of the game but I could understand people moving away from it. Online Gameplay: I have yet to play against a fellow player on this game. There are only 4 user reviews and this one being the 5th. Don't let this move you away from the game. As I stated originally this is a great game to start traditional Hanafuda and you can play against the CPU. It will be your best friend in teaching you how to play Hanafuda. The Music: One of the cool and unique things about this game is its music room section. This part of the review has nothing to do with Hanafuda but I really respect that the developer did something cool when selecting music room in the main menu. When you look at the playlist you see 5 or 6 pianos playing the music. This is another great addition to the retro aesthetic of the game. Seeing 5-6 different midi keyboards playing separate parts of the music is awesome. It shows how much thinking goes into layering music and the different instruments. As a Jazz Studies Piano major I really enjoyed this. I don't see many games doing this. Conclusion: This game needs more attention, It is the easiest and most convenient version of Hanafuda on Steam. I was waiting patiently for this game to release. It needs more attention and new players to join. I would enjoy playing with other people. I know I am creating a bias when I say this but I dislike how Hololive has made Hanafuda. As i stated earlier, Battle Hanafuda is a more traditional take and there are different ways you can play Hanafuda. I enjoy the traditional game compared to others. If you think this game isn't your type of thing I can respect that. The advice I would provide you all with is to at least try it. With a price tag of $7 its great. It is a calming and passionate game. It has a story to tell through the flowers/cards.
Already my favorite koi-koi game on pc. The retro style and music really makes this stand out from the typical hanafuda cards you see in many games. It's nice to have a dedicated koi-koi game thats not just a side quest (yakuza series), or holotube themed. They added oicho kabu and i hope to see 4 player cpu oicho kabu, new rule sets for koi-koi and other hanafuda games (I saw a community post about a potential hanafuda solitaire game! I would die for that!) The game is still early access but for a basic koi-koi game it's all there ready to play right now with online too. The devs are releasing updates at a steady pace and for $7 usd this is a steal. I hear theres a good tutorial page for newbies and cpu vs cpu matches to watch; so if you looking to get into koi-koi or looking for a good pc version i'd highly recommend this game! 10/10
An adorable little "retro-esque" hanafuda game with all the flair and fun of a classic arcade machine.
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Pace estimated from the game's recent review growth (our daily snapshots) at its own sales-per-review ratio — a momentum signal, not booked sales.
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