EMU7800 vs Felix

EMU7800 is a free emulator for the Atari 7800 ProSystem and the backward-compatible Atari 2600 Video Computer System. It runs on Windows, Linux, and macOS and supports saved game states. The maker says it runs on Windows 11, and its Windows installer does not need administrator permission. Windows users can connect Stelladaptor, 2600-daptor, 2600-daptor II, and Xbox 360 controllers. Saved game state is kept in the user profile at %USERPROFILE%\.emu7800savedgames. The project lists Linux ARM and ARM64 targets using SDL3; Linux systems may need SDL3, SDL3 image, and SDL3 TTF installed. Its macOS x64 and ARM64 targets are described as experimental and untested. Building from source requires the .NET 10.0 SDK and Git. The project was originally completed in 2003 as a .NET programming exercise, is licensed under GPL-2.0, and is maintained as a non-commercial endeavor. The current release listed is v5.7.0.0, released December 31, 2025.

Felix is a free Atari Lynx emulator distributed as a public GitHub repository under the MIT license. It currently builds only under Windows, with documented build routes through Visual Studio 2022 or command-line CMake; both require Visual Studio 2022, Git, and CMake. The README says it is expected to work in Wine, Parallels, and similar environments. Version 0.5.0 introduced a simple graphical interface, redefinable key mapping, and basic gamepad support. Release notes also list Lua debugging facilities, a monitor window, and commands for dumping WAV and VGM audio. Lua libraries for string, os, math, and table are included. The latest listed release is 0.6.4. Known issues in version 0.6.0 include hangs in Awesome Golf and Scrapyard Dog, crackling from audio/video synchronization, and debugging features that remain imperfect. The project is maintained through the laoo account, whose profile names Waldemar Pawlaszek and lists Wrocław.