FCEUX11 is a derivative of the FCEUX NES/Famicom emulator, optimized for Windows. It inherits FCEUX's renowned emulation accuracy while delivering a polished, modern Windows-native experience powered by Qt6, with 12-language localization and a full suite of debugging and TAS tools for developers and speedrunners. Ongoing internal refactoring and performance optimization keeps the emulator efficient, smooth, and stable even under heavy load. Experimental Game Boy Advance (GBA) emulation support has been added, reusing the existing UI, save-state system, hotkeys and debugging infrastructure; GBA features are in Beta, the picture carries a watermark, and some hardware features are not yet fully implemented.

Features

  • Accurate Emulation: Full NES, Famicom, and mapper support with faithful graphics and audio, delivering the authentic 8-bit experience.
  • Experimental GBA Emulation (BETA): Play .gba cartridges with BIOS system calls, audio output, battery saves (.srm), save states, controller input, and integer-scaled display; the Beta watermark cannot be disabled.
  • Save States: Save and load anywhere, anytime, with automatic state history so you never lose progress.
  • Movie Recording & TAS Editor: Record full playthroughs, replay them anytime, and export to AVI to share your best runs; frame-by-frame input editing helps you craft perfect Tool-Assisted Speedruns.
  • Cheats: Game Genie and raw cheat code support to tweak gameplay, unlock hidden content, or just have fun bending the rules.
  • FCEUX11 ships in 12 languages: 简体中文、繁體中文、English、日本語、한국어、Español、Français、Deutsch、Tiếng Việt、ไทย、हिन्दी(beta)、العربية(beta).

Project Samples

Project Activity

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License

GNU General Public License version 2.0 (GPLv2)

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FCEUX11 Web Site

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Additional Project Details

Operating Systems

Windows

Languages

Arabic, Chinese (Simplified), Chinese (Traditional), English, French, German, Hindi, Japanese, Korean, Spanish, Thai, Vietnamese

Intended Audience

Developers, End Users/Desktop

User Interface

Qt

Programming Language

C, C++, Rust

Related Categories

C++ Games, C++ Console Games, C++ Emulators, C Games, C Console Games, C Emulators, Rust Games, Rust Console Games, Rust Emulators

Registered

2026-06-19