Dendy vs NET-NES

Dendy is a free NES/Famicom emulator written in Go, with desktop versions for Windows, macOS, and Linux and a WebAssembly version for modern browsers. The desktop program has no graphical interface and runs from the command line with a .nes ROM file. Player one can use a keyboard or a detected gamepad, and a mouse can emulate the Zapper light gun. Options include save-state control, rewind, screenshots, CRT effects, and Game Genie codes. Network multiplayer uses rollback networking and peer-to-peer connections. A public relay can help players behind NATs find peers and connect, though it will not work if both players are behind symmetric NATs. Users can also build and run their own relay. The browser version does not currently support netplay. The maker cautions that Dendy may not match established emulators in accuracy or compatibility, so some games may not run. Sound emulation is still in progress and may produce pops and crackles. The project is MIT-licensed.

NET-NES is a free Nintendo Entertainment System emulator written in C# that can run some NES games. Downloadable builds are listed for Windows, macOS, and Linux, including win-x64, win-x86, osx-x64, osx-arm64, and linux-x64. Launching the executable opens a basic graphical interface with options to open a ROM and view the manual. Command-line options include ROM loading, a CPU JSON test, window scaling, an FPS counter, and debug mode. Mapper 0 is supported, while Mappers 1, 2, and 4 are implemented experimentally. The project says it passes nestest CPU instruction tests and lists tested games as working, but some games may glitch or freeze. Its PPU uses scanline timing rather than dot-by-dot timing, so it is not cycle accurate and some games may be affected. A debugger, Mapper 3, player 2 controller support, and audio are listed as upcoming features. The project distributes the software under the MIT License.