UPBGE is a fork of blender, based on blender game engine.
the render has scene slow upgrades over the years, however we could use your help.
Can we have ProRender intergrated?GitHub - UPBGE/blender: UPBGE, the best integrated game engine in Blender
Up to the developers there. Most game engines don't use path tracing. If it's similar to blender 2.78-2.79 it shouldn't be that hard.