umu(1)                      General Commands Manual                     umu(1)

NAME
       umu-run - Unified Launcher for Windows Games on Linux

SYNOPSIS
       umu-run [FILE]

       umu-run [FILE [ARG...]]

       umu-run [winetricks [ARG...]]

       umu-run --config [FILE]

       umu-run --help

POSITIONAL ARGUMENTS
       winetricks
           Run winetricks[1] verbs (Requires GE-Proton or UMU-Proton).

           See winetricks(1) for more info or below for an example.

OPTIONS
       -h, --help
           Show this help message.

       --config <config>
           Path to TOML configuration file (Requires Python 3.11+).

           See umu(5) for more info and examples.

DESCRIPTION
       The Unified Launcher for Windows Games on Linux (umu) was created to
       make Valve's Proton[2] and the protonfixes[3] project accessible
       outside the Steam client, providing a standardized way for other
       clients (e.g., Lutris, Heroic Games Launcher, Bottles, or Rare) to run
       games via Proton and configure WINE prefixes.

       As a result, clients:
       o   No longer require Steam or Steam binaries to be installed
       o   Can contribute and automatically benefit from protonfixes
       o   Can run games through Proton as it were a native Steam game
       o   Can reference a unified online database of game fixes (protonfixes)

       You can run umu directly from a terminal emulator, or through your
       launcher of choice if supported.

EXAMPLES
       Example 1. Run a game

           $ WINEPREFIX=~/.wine PROTONPATH=~/GE-Proton9-4 umu-run foo.exe

       Example 2. Run a game and apply a specific protonfix

           # Applies the Star Citizen fix to the current WINE prefix
           $ WINEPREFIX=~/.wine GAMEID=umu-starcitizen PROTONPATH=~/GE-Proton9-4 umu-run foo.exe

       Example 3. Run a game via a configuration file

           # config.toml
           [umu]
           prefix = "~/.wine"
           proton = "~/GE-Proton30"
           game_id = "0"
           exe = "~/foo.exe"
           launch_args = ["-opengl", "-SkipBuildPatchPrereq"]
           store = "gog"
           $ umu-run --config config.toml

       Example 4. Create a umu WINE prefix

           $ WINEPREFIX=~/foo PROTONPATH=~/GE-Proton9-4 umu-run ""

       Example 5. Run a game and automatically set Proton

           # Uses the latest UMU-Proton and automatically removes old UMU-Proton builds
           $ WINEPREFIX=~/.wine umu-run foo.exe

       Example 6. Run a game, automatically set Proton, and create a WINE
       prefix

           # Creates the prefix as $HOME/Games/umu/umu-default and uses the latest UMU-Proton
           $ umu-run foo.exe

       Example 7. Run a game and explicitly set a valid Proton verb

           $ WINEPREFIX=~/.wine GAMEID=0 PROTONPATH=~/GE-Proton9-4 PROTON_VERB=waitforexitandrun umu-run foo.exe

       Example 8. Run a game and enable debug logs

           $ UMU_LOG=debug WINEPREFIX=~/.wine PROTONPATH=~/GE-Proton9-4 umu-run foo.exe

       Example 9. Run a game and set a Proton by its version name

           # Checks for GE-Proton9-1 at $HOME/.local/share/Steam/compatibilitytools.d
           $ WINEPREFIX=~/.wine PROTONPATH=GE-Proton9-1 umu-run foo.exe

       Example 10. Run a game and automatically use the latest GE-Proton

           $ WINEPREFIX=~/.wine PROTONPATH=GE-Proton umu-run foo.exe

       Example 11. Run winetricks verbs

           $ PROTONPATH=GE-Proton umu-run winetricks quartz wmp11 qasf

       Example 12. Run a game, but do not apply protonfixes

           $ GAMEID=umu-genshin PROTONPATH=GE-Proton PROTONFIXES_DISABLE=1 umu-run foo.exe

ENVIRONMENT VARIABLES
       GAMEID
           Optional. Can be an arbitrary value or a valid id in the
           umu-database[4]. If unset, defaults to umu-default (does not apply
           any fixes automatically).

       PROTONPATH
           Optional. Path to a Proton directory, version name (e.g.,
           GE-Proton9-5) or codename (e.g., GE-Proton).

           Otherwise, defaults to using UMU-Proton.

           Valid codenames include: GE-Proton

       WINEPREFIX
           Optional. Path to a WINE prefix directory. Otherwise, defaults to
           $HOME/Games/umu/$GAMEID. If no GAMEID is set, defaults to
           $HOME/Games/umu/umu-default.

       UMU_LOG
           Optional. Enables debug logs for the launcher.

           Set 1 to enable all logs.

       STORE
           Optional. Can be an arbitrary value or a valid store id in the
           umu-database.

       PROTON_VERB
           Optional. Must be a valid Proton verb. Otherwise, defaults to
           waitforexitandrun.

       UMU_RUNTIME_UPDATE
           Optional. Disables automatic updates to the Steam Linux Runtime[5].

           Set 0 to disable updates.

       UMU_NO_PROTON
           Optional. Runs the executable natively within the Steam Linux
           Runtime. Intended for native Linux games.

           Set 1 to run the executable natively within the SLR.

       UMU_HTTP_TIMEOUT
           Optional. Sets the timeout, in seconds, for each HTTP request.
           Otherwise, defaults to 5.

           Set 0 to disable timeouts for HTTP requests. Set a positive integer
           to override the default.

       UMU_HTTP_RETRIES
           Optional. Number of times to retry possibly spurious network
           errors. Otherwise, defaults to 3.

           Set 0 to disable retries for HTTP requests. Set a positive integer
           to override the default.

SEE ALSO
       umu(5), winetricks(1)

NOTES
       1.  https://github.com/Winetricks/winetricks
       2.  https://github.com/ValveSoftware/Proton
       3.  https://github.com/Open-Wine-Components/umu-protonfixes
       4.  https://github.com/Open-Wine-Components/umu-database
       5.  https://gitlab.steamos.cloud/steamrt/steam-runtime-tools/-/blob/main/docs/container-runtime.md

AUTHORS
       Maintained by Open Wine Components members, and assisted by other open
       source contributors. For more information about umu development, see
       https://github.com/Open-Wine-Components/umu-launcher.

                                  2026-07-25                            umu(1)