BlastEm vs MEKA

BlastEm is a free, open-source emulator for Sega's 16-bit and 8-bit consoles. It supports Genesis/Mega Drive, Sega CD, 32X, Master System, Game Gear, SG-1000, SC-3000, Sega Pico, and Yamaha Copera. Downloads are listed for Linux, macOS, and Windows, with an experimental web version. Gameplay features include save states, cartridge save RAM and EEPROM support, turbo and slow modes, controller input, and VGM logging. Its integrated debugger can inspect and modify state, set conditional breakpoints, run scripts, and show visual VDP tools. Developers can use the GDB remote debug protocol for source-level debugging of SGDK and other C or C++ projects. The maker describes it as fast enough for older PCs and accurate enough for demanding demos. Most Sega CD and 32X games are playable, but compatibility is not perfect. Yamaha Copera emulation is incomplete: games generally lack music, though Copera-specific ADPCM samples play. The listed macOS download is x86-64 and not notarized; the page directs ARM users to Homebrew.

MEKA is a free multi-machine emulator for Sega 8-bit systems and ColecoVision. It supports the SG-1000, SC-3000, SF-7000, Mark III, Master System, Game Gear, ColecoVision and Othello Multivision, along with a wide range of peripherals and unusual games. The project includes a debugger and tools for debugging and hacking, aimed at programmers and people working with Sega 8-bit systems. It also provides a game database and compatibility list, which the site describes as receiving fixes and changes. MEKA is free software under a BSD-like license, and its source and data may be browsed and reused without restrictions. The download page lists a Windows x86 build and directs GNU/Linux and macOS users to build from source. That page describes MEKA 0.80 as in development, while the GitHub releases page lists Meka 2025-08-17 as the latest release. Initiated in 1998, the project is maintained by Omar Cornut, known as Bock. The project says it has limited use for the average player.