GoNES vs My NES

GoNES is a free, open-source NES emulator written in Go. It runs on Windows, macOS, Linux and web browsers; the browser version compiles to WebAssembly, and the project links to a hosted instance. At startup, the app opens a file picker for selecting a .nes ROM, and it can also be launched from a terminal with a ROM file argument. The project lists support for mappers 0, 1, 2, 3, 4, 7, 69 and 71, which it says cover 84.34% of official NES games. Keyboard controls for two players are configurable. Save-state, load-state and undo bindings are listed. GoNES creates a configuration file on first run, with its location documented for each desktop platform. Release downloads are provided, and macOS installation through Homebrew is documented. Source installation is also documented. Building requires OpenGL development libraries because rendering uses Ebitengine. The project says its GUI renders, but menu options still need to be added.

My NES is a portable, open-source NES and Famicom emulator for Windows, written in C#. It emulates NES processing, supports NTSC, PALB and DENDY formats, and implements about 97% of known documented mappers. The project says it passes most known hardware behavior tests, although some games may fail because of an unimplemented mapper or emulation bug. A built-in launcher organizes games, shows information from NesCart DB, and records ratings and play time. Users can save and load states, take snapshots, record game audio and use Game Genie. Four-player joypads work through a keyboard, joystick or Xbox 360 controller. Video can be upscaled beyond Full HD. The emulator is multithreaded, and the project reports 60 fps on older Windows machines. My NES is.NET freeware under GNU GPL version 3, listed at free. It usually runs after extracting a portable package and stores settings and user files in Documents. Requirements include.NET Framework 4, DirectX and Microsoft C++ Runtime.