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umu-launcher vs Bottles: catalog facts
umu-launcher	Bottles
Free Free and open source.	Free Free and open source under GPLv3, funded by donations.
Linux, Command line	Linux
Runs Proton outside Steam Uses the same runtime environment as Steam's Proton	Creates and manages Wine prefixes from templates instead of shell commands Manages runner and DXVK versions, and installs dependencies from a catalogue
Command-line only, no graphical interface Linux only	Linux only, and primarily distributed as a Flatpak Wine compatibility is still Wine compatibility; Bottles cannot make a program work that Wine cannot run
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0	License: GPL-3.0
No account needed	No account needed
Not stated if it works offline	Works offline
Official website Full listing and sources Checked September 24, 2026	Official website Full listing and sources Checked September 20, 2026

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