proton
TLDR
Run Windows game via Proton
$ proton run [game.exe]
Run with specific Proton version$ PROTON_VERSION=[7.0] proton run [game.exe]
Enable logging$ PROTON_LOG=1 proton run [game.exe]
List installed Protons$ ls ~/.steam/steam/steamapps/common/ | grep -i proton
SYNOPSIS
proton command [options] [executable]
DESCRIPTION
Proton is Valve's compatibility layer for running Windows games on Linux through Steam. It's based on Wine with additional patches, DXVK, and VKD3D for DirectX support.
Usually invoked automatically by Steam rather than directly.
PARAMETERS
run
Run Windows executable.waitforexitandrun
Wait for process then run.
EXAMPLES
$ # Direct invocation (rare)
~/.steam/steam/steamapps/common/Proton\ 7.0/proton run game.exe
# With environment variables
PROTON_USE_WINED3D=1 proton run game.exe
# Enable NVIDIA DLSS
PROTON_ENABLE_NVAPI=1 proton run game.exe
# Debug output
PROTON_LOG=1 PROTON_DUMP_DEBUG_COMMANDS=1 proton run game.exe
~/.steam/steam/steamapps/common/Proton\ 7.0/proton run game.exe
# With environment variables
PROTON_USE_WINED3D=1 proton run game.exe
# Enable NVIDIA DLSS
PROTON_ENABLE_NVAPI=1 proton run game.exe
# Debug output
PROTON_LOG=1 PROTON_DUMP_DEBUG_COMMANDS=1 proton run game.exe
ENVIRONMENT VARIABLES
$ PROTON_LOG=1 # Enable logging
PROTON_USE_WINED3D=1 # Use OpenGL instead of Vulkan
PROTON_NO_ESYNC=1 # Disable esync
PROTON_NO_FSYNC=1 # Disable fsync
PROTON_ENABLE_NVAPI=1 # Enable NVIDIA features
PROTON_USE_WINED3D=1 # Use OpenGL instead of Vulkan
PROTON_NO_ESYNC=1 # Disable esync
PROTON_NO_FSYNC=1 # Disable fsync
PROTON_ENABLE_NVAPI=1 # Enable NVIDIA features
CAVEATS
Primarily managed by Steam. Not all games compatible. Check ProtonDB for compatibility reports.
HISTORY
Proton was developed by Valve in collaboration with CodeWeavers, released in 2018 for Steam Play on Linux.
