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GE-Protonumu-launcher
Free

Free, with source published on GitHub.

 Free

Free and open source.

Linux Linux, Command line
  • Extra patches beyond Valve's official Proton
  • Can be chosen per game in Steam
  • Runs Proton outside Steam
  • Uses the same runtime environment as Steam's Proton
  • Must be installed manually or with a helper tool
  • Not an official Valve release
  • Command-line only, no graphical interface
  • Linux only
Downloadable app Downloadable app
Open source Open source
License not stated License: GPL-3.0
Not stated if an account is needed No account needed
Not stated if it works offline Not stated if it works offline

Checked September 23, 2026

Checked September 24, 2026

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