MEKA is primarily a Sega Master System emulator, though it also emulates SG-1000, SC-3000 Sega Super Control Station (SF-7000), Sega Mark III, Sega Game Gear, ColecoVision, and Othello Multivision. It has support for zipped ROM files, can save screenshots in PNG format, and create save states for Master System and Game Gear.
MEKA includes a full-featured debugger and various hacking and auditing tools, allowing it to be used as a powerful platform for programming or reverse engineering software on the supported systems.
Version 0.70 was released on April 3, 2005 under an Open Source license. Since then there has been three official releases: 0.71 on 25 June 2005, 0.72 on 17 July 2007, and 0.73 on 30 May 2010, as well as a number of WIP releases in between which have added features such as 16- and 32-bit color support.
MEKA is dedicated to Wonder Boy III: The Dragon's Trap, wherein the first dragon is named Meka (or Mecha).
- Omar Cornut "Bock" - Machine emulation, graphical user interface, and other general things. He is the main developer responsible for MEKA, although other people have contributed with various important work.
- Hiromitsu "Hiro-shi" Shioya worked on the original MEKA sound engine years ago. His work shows in the main sound engine structure, YM2413 emulation through OPL and the sound interface to the SEAL Audio library.
- Marat Fayzullin "Rst38h" wrote a Z80 CPU core for one of his various emulation projects, and that ended being used in MEKA. Bock brought fixes and improvements to the core, but most of the work is from Marat.
- Mitsutaka Okazaki wrote a digital YM2413 emulator named Emu2413, which was implemented in MEKA.
- Maxim Gready contributed work and research on the SN76496 PSG and the original PSG emulator.
- Ulrich Cordes wrote a FDC-765 emulator that was used as a base to emulate the floppy disk controller of the SF-7000.