GoBoy vs SkyEmu

GoBoy is a free, open-source emulator for Nintendo Game Boy and Game Boy Color, written in Go. It runs most Game Boy games and some Game Boy Color games, with color and sound support. Builds are listed for Linux, macOS, and Windows; users can download a release or install from source using Go and the documented commands. Debugging options print opcodes and register values or toggle individual sound channels. The listed controls are arrow keys, Z, X, Enter, and Backspace, with shortcuts for palette changes and fullscreen. For battery-backed ROMs, GoBoy creates a save file beside the ROM and updates it every second while the game runs. It uses the Pixel library for graphics and controls, which requires OpenGL; Linux builds also require GTK, and Windows 10 builds require MinGW. The project describes itself as a work in progress and development exercise, and lists unresolved graphics, audio, and cartridge issues. Save states and boot ROM support remain TODOs.

SkyEmu is a free emulator for Game Boy, Game Boy Color, Game Boy Advance, and Nintendo DS systems. It runs on Android, iOS, Linux, macOS, web, and Windows, and can load ROMs compressed in ZIP archives. Graphics options include upscaling shaders, color correction, and screen ghosting. Controls include game controllers, rumble, configurable keybinds, and mobile on-screen controls. Four persistent save-state slots include screenshot previews. A REST-like API supports asynchronous scripting and automation, and listed integrations include Retro Achievements, a RetroArch/libretro core, and Google Drive save-state sync. The web app runs locally using WebAssembly and JavaScript, keeping files on the user's machine; its service worker enables offline use on more platforms. The project describes its focus as preserving these systems for future generations while providing a good user experience. It says Game Boy Advance emulation is significantly more accurate than its Game Boy and Game Boy Color emulation. Many Nintendo DS games still have mild graphics and audio issues, and DS emulation is beta quality.