CEN64 vs OpenEmu

CEN64 is a free Nintendo 64 emulator for Windows, Linux, and macOS. It aims to reproduce the console by modeling its hardware at the register-transfer level, while optimization remains a goal for eventual full-speed play on modest systems. To run a game, users need a valid NTSC or PAL pifdata.bin file and a big-endian .z64 ROM. CEN64 can also run 64DD disk images with a valid 64ddipl.bin file and an .ndd image. The README documents EEP4K, EEP16K, FLASH, and SRAM save options; users select the save type themselves. A multithread option is available and is described as faster than running without it. Prebuilt executables are linked for Windows and Linux, including a Debian 9 x86_64 Linux build. On macOS, the emulator must currently be built from source, using CMake, iconv, OpenAL, and OpenGL. The project uses the BSD-3-Clause license. An open issue reports an ARM build limitation.

OpenEmu is free, open-source video game emulation software for macOS. It organizes game backups into a unified library, adds box art and supports collections spanning consoles. Users drag and drop backups for scanning and organization. Modular cores from open-source projects emulate systems including Atari, Game Boy, Nintendo, Sega, Sony PlayStation and Super Nintendo; the project lists 31 supported systems. Generic HID-compliant USB or Bluetooth controllers can work immediately, with automatic mapping for recognized devices. OpenEmu is intended for games users already own, and BIOS files are required. The wiki describes an experimental arcade core plugin that is strictly unsupported. The latest release page identifies OpenEmu 2.4.1 binaries as Intel-only. The official site offers a macOS (OS X) application, but the version requirement was not rendered. The project lists save states, CD audio and cheat support, while online netplay is not available.