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Emulicious vs Gearsystem: catalog facts
Emulicious	Gearsystem
Free Free to use.	Free Free, with source code published on GitHub.
Windows, macOS, Linux	Windows, macOS, Linux
Five systems in one program Extensive debugger with reverse stepping and remote debugging	Focus on accurate emulation Built-in debugger for developers
Built on Java rather than native code Source code is not published	Covers only Sega 8-bit systems
Downloadable app	Downloadable app
Closed source	Open source
License not stated	License not stated
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 23, 2026

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