Running SDK on Linux

Prerequisites

To run the development version of the SDK via Proton with large address aware, selection, and window position fixes, we need to modify the default launch command used by Steam.

Navigate to RedOrchestra SDK Beta properties in your Steam library and add the following line to Launch Options:

eval $(python tools/scripts/clear-windowpositions.py DarkestHourDev/System/DarkestHourDevUser.ini; \cp -rf System/EditorSelectionFix/D3DDrv.dll System/; sed -re "s/ROEd.exe('?) .*'?--'? /ROEdLAA.exe\1 /" <<< "%command%")

Running the SDK editor

Once the shim is added to the launch options, running the SDK from Steam GUI or via command line (without any external parameters) will launch Red Orchestra SDK.

steam -applaunch 1220 # launches RO editor

To override the default behavior, we can launch the game via Steam CLI and append -- to the command, followed by our own options.

steam -applaunch 1220 -- -mod=DarkestHourDev -nogamma # launches development version of the SDK with applied fixes