Gopher64 vs Not64

Gopher64 is a free, open-source Nintendo 64 emulator for Windows, macOS, Linux, and Android. It supports homebrew software, netplay, and local or server-based networked multiplayer for one to four players. Graphics options include upscaling and a CRT shader; emulation features include CPU overclocking, cheats, and save states. RetroAchievements is also supported, and enabling it sends some data to RetroAchievements systems. The itch.io listing names keyboard, Xbox controller, gamepad, joystick, and PlayStation controller inputs. Downloads are listed for all four platforms, with Flathub and Homebrew also pointed out for Linux and macOS. The source code is licensed under GPLv3. During online netplay, the server logs the user's IP address and basic session information—the game title and session name—for operational purposes; no additional personal data is collected or stored. The maker links a wiki and Discord, but there is no game compatibility list; game-specific problems are directed to GitHub issues.

Not64 is a free, experimental Nintendo 64 emulator for Nintendo GameCube and Wii, described as a modification of Mupen64GC using devkitRice. It accepts z64, v64, and .n64 ROM files of any size. For SD or USB storage, ROMs go in /wii64/roms and saves in /wii64/saves; ROMs may also be anywhere on a DVD, with DVDxV2 required for Wii disc loading. Input supports Wii Remote, Nunchuk, Classic Controller, and GameCube Controller, with up to four Wii Remotes. Buttons are configurable through four slots for each controller type. Users can select a pure interpreter for compatibility or dynarec for speed. Video settings include aspect-ratio selection, forced 16:9, and optional 2xSaI texture scaling. Automatic native-save loading and saving and save states are supported, while save copying and deletion are not implemented. Downloads name Wii, Wii Mode (vWii) on Wii U, and Wii Mini. The project uses GNU GPL v2, with similar licensing and source availability required for released modifications.