RSSKega
Kega Fusion is an emulator of the Sega Mega Drive (Sega Genesis) for Microsoft Windows and Mac OS X, written by Steve Snake. It also emulates the Sega-CD/Mega-CD and Sega 32X add-ons (together or separately), as well as the Sega Pico, Sega Game Gear, Sega Master System, SG-1000 and SC-3000.
Kega Fusion is based on the earlier Kega and its successor Kega Lazarus, both of which have been discontinued.
As of February 9th, 2009, Kega Fusion is recognized by Xfire
The majority of the emulator is written in assembly language. On a Pentium III class or a similar microprocessor, Kega Fusion runs Mega Drive / Genesis ROM images at 50 or 60 frames per second, though with the popular 2xSaI graphics filter plugin the processing power needed to achieve the full 50/60 frames per second is much higher (it should also be noted that emulating Sega 32X games at a playable speed requires an 850 MHz or faster microprocessor). The emphasis on accuracy is demonstrated by Fusion’s emulation of the Yamaha YM2612 chip, which is reported by Steve Snake to be almost perfect — other emulators, such as Gens, suffer from imperfections in emulation of this chip (as demonstrated by the title screen theme for Sonic 3D Blast and Sonic & Knuckles). Compatibility is very high with Kega Fusion, even for the Sega 32X – every 32X game, including SegaCD+32X games, are accurately emulated. Many of these games are unplayable on other emulators. Since the Sega 32X BIOS routines have been more thoroughly reverse engineered than those for the Mega-CD, as of version 3.3 Kega Fusion does not require the Sega 32X BIOS images, though they can still be used. Kega Fusion can emulate all known Sega home video game consoles released before the Sega Saturn (there is some cryptic indication by Steve Snake that Saturn emulation could be possible in the future) besides Sega SF-7000 emulation which is missing.
Along with being able to emulate most Sega home console systems Kega Fusion also supports logging to a WAV file or the successor to GYM format, VGM. VGM is much like GYM in terms of how it is created but widely superior in its accuracy to YM2612 synthesis, compression (in the VGZ format) and looping. As of version 3.5, Kega Fusion supports multiplayer over the internet or LAN. While multiplayer support is still in its preliminary stages, Kega Fusion 3.51 has made multiplayer more stable.
As of December 10, 2008, Kega Fusion 3.6 supports emulation of the Sega Virtua Processor, along with movie logging support through the included custom Kega Game Video 1 lossless codec. Preliminary Sega Pico support was also added.
