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RetroBat vs EmuDeck: catalog facts
RetroBat	EmuDeck
Free The open-source distribution is available without a license fee.	Free Free to download from the official site.
Windows	Windows, Linux
Everything is preconfigured, including controller mapping across emulators Runs portably from a USB drive	Sets up many emulators in one pass Aimed at Steam Deck and ROG Ally handhelds
Windows only Large download, and customising beyond its defaults takes effort	Configures third-party emulators rather than emulating anything itself Little detail is published on the homepage
Downloadable app	Downloadable app
Open source	Closed source
License not stated	License not stated
Not stated if an account is needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked September 22, 2026	Official website Full listing and sources Checked September 23, 2026

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