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. Multi-language support (12 languages) and a full suite of debugging and TAS tools are built in for developers and speedrunners alike. Ongoing internal refactoring and performance optimization work keeps the emulator efficient, smooth, and stable — even under heavy load. Whether you're revisiting childhood classics or diving into ROM hacking, FCEUX11 runs your NES games smoothly and looks great doing it.

Features

  • Accurate Emulation: Full NES, Famicom, and mapper support with faithful graphics and audio, delivering the authentic 8-bit experience.
  • Save States: Save and load anywhere, anytime, with automatic state history so you never lose progress.
  • Cheats: Game Genie and raw cheat code support to tweak gameplay, unlock hidden content, or just have fun bending the rules.
  • Movie Recording: Record full playthroughs, replay them anytime, and export to AVI to share your best runs.
  • Gamepad Support: Play with keyboard or gamepad, with fully remappable inputs to suit your play style.
  • 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).
  • Custom Palettes: Load custom palette files to fine-tune color rendering and match the exact look you remember.
  • Debugging Tools: Built-in CPU/PPU debugger, hex editor, RAM search/watch, and code/data logger for ROM hacking and in-depth analysis.
  • TAS Editor: Frame-by-frame recording and precise input editing to craft perfect Tool-Assisted Speedruns.
  • Lua Scripting: Write Lua scripts to create custom on-screen displays, automate gameplay, or read memory, extending the emulator however you like.

Project Samples

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License

GNU General Public License version 2.0 (GPLv2)

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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