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Genesis Plus GXGearsystem
Free

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

 Free

Free, with source code published on GitHub.

Windows, macOS, Linux Windows, macOS, Linux
  • One core covers Mega Drive, Sega CD, Master System, Game Gear and SG-1000
  • Accurate sound emulation, including the Sega CD's PCM
  • Focus on accurate emulation
  • Built-in debugger for developers
  • Usually run through RetroArch rather than as a standalone application
  • Covers only Sega 8-bit systems
Downloadable app Downloadable app
Open source Open 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 September 23, 2026

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