SDL-based Visual Novel Engine · 2026
Innocent Blue
A custom game engine built with SDL, designed to bring an existing visual novel series to modern platforms, including Windows and Android.
Independent developer · 2010 — present
I build game engines, development tools and localizations.
I'm Juan Ochoa, known in developer communities as JNC. I'm an independent developer specializing in software engineering, game modding, backend systems, custom tools, and Japanese visual novel localization.
- Projects
- +10
- Areas
- 5
Who I am
About me
My work ranges from offline media libraries to rhythm game simulators, SourceMod plugins and tools for modifying proprietary video game formats.
- C++
- C#
- VB
- Lua
- Kotlin
- SourcePawn
Work
Projects
A selection of what I have built: software, localizations and tools.
Software development · 2019–Present
XSanity
StepMania-based rhythm simulator that recreates the Pump It Up experience.
Android TV · 2024–2026
TV Music Player
Android TV music player built with Kotlin and Jetpack Compose.
Private Project
Android · 2022–2026
Mobile Music Player
Android music player built with Kotlin and Jetpack Compose based on ViMusic.
Private Project
Android · 2025
KofiKey
Custom Android keyboard (IME) built in Java on top of AOSP LatinIME.
Private Project
Localization · 2015
School Days HQ
Official Spanish translation of the visual novel.
Localization · 2018
Shiny Days
Spanish translation project.
Reverse engineering · 2019
Cross Days Script Tools
Tools for script manipulation, and for extracting and adapting the visual novel's assets.
Integration Tools · 2024
SteamLinkTool
A lightweight integration tool designed to act as a bridge for Steam, enabling communication between Steam and external applications or components.
Plugin development · 2010–2022
SourcePawn Development
Extensions and plugins for Source Engine servers.
Desktop app · 2012–2013
Anime.D Database
Offline library to browse and organize anime information without needing a permanent Internet connection.
Systems Programming
Custom Binary Packer
Development of a custom binary packing system featuring a proprietary file format, encrypted data storage and structured resource organization.
Backend Development
Source Master Server
Custom master server for game server discovery, registration and player matchmaking, enabling clients to locate and connect to active game servers.
Contact
Have an idea in mind?
Write to me and I will tell you how I can help you make it happen.