Archive - FlyableHeart Dev Blog

I've Started Making a Hanafuda Game

Sat, 11 Jul 2026 15:13:00 +0900

Hello, this is Yuu!

After last week’s release, I’ve already started working on my next project: a Hanafuda game. This time, I’m also challenging myself to make it in 3D. Just like Flyjong, I’m building everything without using Unity or Unreal Engine 5, and so far the development has been going smoothly without any major issues.

I’m very happy with how my previous game turned out, but it also took much longer to release than I had originally planned. This time I’d like to finish the project in a shorter amount of time. That said, I’m experimenting with several new ideas, so it could still end up taking longer than expected. I also plan to add PvP, so I’ll probably keep the visual effects a bit more restrained and focus more on the gameplay itself.

flyjong has been released

Sun, 05 Jul 2026 15:27:00 +0900

Hello, I’m Yuu!

I’m happy to announce that I finally released flyjong, a project I’ve been working on for over two months.

flyjong

A strip-mahjong-style riichi mahjong for two players

Play in Browser

The core of the game was finished in about a month, but I kept polishing the small details until I was satisfied. As a result, both the release and my blog updates ended up taking longer than I had originally planned. Still, I’m glad to finally share it with everyone.

Working on Mahjong Tile Design

Sat, 30 May 2026 16:06:21 +0900

Hello, this is Yuu!

Following up from last week, I’d like to share another update on my Mahjong game project.

Right now, development has progressed to just before the AI implementation stage, and I’ve been focusing heavily on the UI.

One thing I spent a surprising amount of time on this week was the appearance of the Mahjong tiles.
I actually ended up redrawing them three times.

Developing a Mahjong Game Has Been Tough

Sat, 23 May 2026 18:23:53 +0900

Hello, this is Yuu!

Ever since I suddenly decided that I wanted to make a Mahjong game, I’ve still been continuously working on it.

Right now, I’ve finished implementing calls such as Ron and Riichi, and I’m currently working on hand evaluation and score calculation.

As for the progress since my last post, the complexity of the game has made me play Mahjong constantly just for reference and testing.

I Started Making a Mahjong Game

Sun, 17 May 2026 12:52:45 +0900

Hello, this is Yuu!

It has already been about two months since my roguelike Sokoban project stalled due to asset-related issues.
I still want to come back to it someday when the timing feels right.

Recently, I came across a Mahjong game that reminded me of an old title I used to play many years ago.
The nostalgia hit me harder than expected, and before I knew it, I had spent the entire night playing it.

Two Weeks Since Starting a New Project

Sat, 21 Mar 2026 09:05:53 +0900

Hello, this is Yuu!

It’s been about two weeks since I started working on a new game after releasing Dicewar.
This time, I’m developing a puzzle-focused game that combines Sokoban-style mechanics with roguelike elements.

I initially thought it would be something I could build casually, but the goal is still far from clear, and it’s turning out to be more challenging than expected.
The screenshot shows a test map I’m currently using, and as you can see, the in-game visuals are still represented with simple symbols.

Starting a New Game Project

Sun, 08 Mar 2026 11:11:39 +0900

Hello, this is Yuu.

I’ve started working on a new game.

Originally, I was planning to develop a simulation game. However, after considering the amount of work it would require, I decided to put that idea on hold for now. Instead, I chose to start a smaller project based on a different concept.

This time, rather than recreating an existing game, I’m experimenting with a different approach: taking a classic style of game and adding new rules to it.

Dicewar has been released

Fri, 06 Mar 2026 21:58:44 +0900

Hello, this is Yuu!

It’s been about four months since my last blog update. The game I mentioned in my November 1st post has finally been completed.

https://flyableh.itch.io/dicewar

The game itself was finished in about two weeks, but just before releasing it I started planning additional things like an iOS version and a dedicated Android build. Because of that, the release kept getting postponed.

Rolling Dice

Sun, 02 Nov 2025 10:57:19 +0900

Hello, this is Yuu!
Yesterday’s post was also about what I worked on yesterday, but I got so absorbed in it that today’s entry is about the same topic again.

Have you ever thought about what it really means to “roll dice”?
Dice are one of the highlights of any board game, but when you try to reproduce that on a game screen, it turns out to be surprisingly difficult.
In the first version, I tried simulating dice rolls in 3D space.

Drawing a Voronoi-Style Map

Sat, 01 Nov 2025 08:52:53 +0900

Hello, this is Yuu!
I’ve been away from development for a while due to various troubles and being busy, and my RPG project has unfortunately come to a halt.
This time, I happened to come across an interesting game, and rather than starting completely from scratch, I decided to begin by creating a simple imitation.

The work I did is actually from yesterday, so technically I started it on Halloween!
I didn’t have time to write about it last night, so I’m writing this post today.

I Started Making a Map Editor

Sat, 30 Aug 2025 16:41:14 +0900

Hello, it’s Yuu! I started making an RPG, but I quickly ran into a wall when it came to creating the world map, so I decided to make a map editor as a supplementary tool.

The functionality is still very rough, and while I’ve got something that looks decent on screen, it’s far from being practically usable. There are similar map editors available if I didn’t have any particular requirements, but I thought I’d try making my own since I have the opportunity.

I Started Making an RPG

Thu, 28 Aug 2025 06:37:51 +0900

Hello! Nice to meet you. My name is Yuu, and I recently started making games as a hobby.

Right now, I’m creating a Dragon Warrior (Dragon Quest) like JRPG using Python. I haven’t been able to work on it much yet—it’s already been about four days since I put together the initial prototype—but today I made some small improvements. At this stage, the player can move around a world map using a placeholder tilemap.