Omose is an Object oriented sega master system designed for first for Linux, but a windows build exists. It's based on SDL and Zlib library and release under GPL.

Features:

• SMS emulation: 96% Games
• Game Gear emulation : 98.0% Games.
• SN76489 sound support.
• Fullscreen/Windowed supported.
• Zip file format support.
• Sound capture into wav file
• In game screenshots.
• Joystick support.

License: free

Additional System Requirements: SDL