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Genesis Plus GXSMS Plus
Free

The open-source emulator is available without a license fee.

 Freemium

The emulator is a free download; the Emulator Enhancer add-on is shareware.

Windows, macOS, Linux macOS
  • One core covers Mega Drive, Sega CD, Master System, Game Gear and SG-1000
  • Accurate sound emulation, including the Sega CD's PCM
  • Accurate Master System and Game Gear emulation
  • YM2413 FM sound and CodeMasters mapper support
  • Usually run through RetroArch rather than as a standalone application
  • macOS only
  • Gamepad and full screen support need the paid Emulator Enhancer
Downloadable app Downloadable app
Open source Closed source
License not stated License not stated
Not stated if an account is needed No account needed
Not stated if it works offline Works offline

Checked September 22, 2026

Checked October 2, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.