FM Infinite 🖥️

The first FM Towns emulator for Android

FM Infinite brings the Fujitsu FM Towns — a legendary Japanese home computer from 1989 — to your Android device. Built on top of the Tsugaru emulator core, FM Infinite aims to be the most accessible way to experience FM Towns software on mobile.

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✨ Features

• 🎮 Full FM Towns & FM Towns Marty support
• 📱 Virtual gamepad with customizable layout
• 💾 Save & load states
• 📂 Smart ROM library with game covers
• 🗂️ Android 11+ scoped storage support
• 🆓 Free and open source forever

📋 Requirements

• Android 7.0 (API 24) or higher
• FM Towns BIOS files (not included)
• Game disc images (ISO, MDS, or CHD)

🚀 Getting Started

1. Install FM Infinite from the releases page
2. On first launch, select a storage folder for your files
3. Place your BIOS files in the bios/ folder
4. Place your game images in the roms/ folder
5. Launch a game from the library

BIOS Setup

FM Infinite requires FM Towns BIOS ROM files.

Download BIOS:

Get the latest BIOS collection from: https://github.com/Abdess/retrobios

Required Files:

Create a bios/ folder and copy these files:

File	Required	Description
FMT_SYS.ROM	✅ Yes	System BIOS
FMT_FNT.ROM	✅ Yes	Font/Character ROM
FMT_DIC.ROM	❌ No	Dictionary ROM
FMT_DOS.ROM	❌ No	DOS ROM

Optional (FM Towns Marty):

File	Description
MAR_EX0.ROM	Expansion ROM 0
MAR_EX1.ROM	Expansion ROM 1
MAR_EX2.ROM	Expansion ROM 2
MAR_EX3.ROM	Expansion ROM 3

Note:

• TOWNS.SYS is deprecated and no longer supported
• Use FMT_SYS.ROM from the retrobios collection
• Files are case-sensitive on some devices

🏗️ Building from Source

Prerequisites

• Android Studio Hedgehog or newer
• Android NDK r25c or newer
• CMake 3.22+

Build Steps

git clone https://github.com/M5Devs/FM-Infinite.git
cd FM-Infinite
# Open android/ folder in Android Studio
# Build > Make Project

🗺️ Roadmap

• Android port of Tsugaru core
• Virtual gamepad
• Android 11+ storage support
• CHD disc image support
• Save states UI
• Game cover scraping
• Windows/Linux desktop version
• Shader support
• Controller mapping

🤝 Contributing

Pull requests are welcome! For major changes, please open an issue first.

📄 License

This project is licensed under the BSD 3-Clause License — see LICENSE for details.

🙏 Credits

See CREDITS.md for full credits.

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Developed with ❤️ by M5 Dev 🇪🇬