Hey Pontypants,
How about exporting the game to 64-bit Linux? Can you do that in your Windows?
Use Wine and/or Winetricks and try getting the game running, you do need a new enough system though (that supports dx 11 and vulkan)
use lutris to run it.
you can crosscompile from windows to linux on unreal but it tends to be not as good as compiling it on linux natively unreal tends to not be as good at cross compiling as other engins like unity and godot
As for now lutris runs the game really well
