Mega-Pi vs webЯcade

Mega-Pi is a free, bare-metal Sega Mega Drive/Genesis emulator for Raspberry Pi hardware. It targets Raspberry Pi 3 and 4 and runs without an operating system such as Linux, which the project associates with near-instant boot and very low input latency. The emulator uses the Picodrive core and Circle bare-metal C++ framework, assigning orchestration, video, audio, and input work across four ARM cores. It scans .bin, .md, and .gen Genesis or Mega Drive files, plus Sega CD/Mega CD .cue files with .bin tracks and compressed .chd files. Sega CD emulation includes the Sub-CPU, PCM audio, CD audio, and rotation/scaling graphics hardware. Video uses 2× integer nearest-neighbor scaling to 640×480, with 44.1 kHz stereo through the Pi PWM sound engine. USB gamepads and keyboards are supported, and save states reside on the SD card. Running it requires a FAT32 card, boot files, a kernel image, game files, and USB input devices; Sega CD also needs regional BIOS files.

webЯcade is a free, open-source browser-based player for gaming content arranged in user-defined feeds. Games run locally in the browser through JavaScript, WebAssembly and HTML5 gamepad and audio interfaces, rather than being streamed. Its graphical feed editor lets users create feeds without working with the underlying document format, and its ROM analyzer can identify application types, metadata and artwork. Supported categories include emulators and game engines, with examples such as Atari, Nintendo, Sega, Doom, Quake and ScummVM. USB and Bluetooth gamepads work for navigation and gameplay. Most emulator-based applications provide eight save-state slots per game. Optional Dropbox linking can share save data and settings across devices and let the feed editor upload local files; access is restricted to the Dropbox account’s /Apps/webrcade folder. Single-item links can be shared, added to iOS or Android home screens, or embedded in web pages. The project prioritizes popular-content compatibility and lower resource needs over the latest emulator features. It is listed for Android, iOS, macOS, web and Windows.