@Ales.Borovicka From what investigation I have been able to do, it appears currently UE4 uses the offline cooking system which means to be able to do that wouldn’t the PhysX cooker for runtime have to be moved somewhere else so it’s not buried in the offline cooking support? Also do you know if the cooker could be on a different thread if it used that path to insert back into the scene instead of serializing/deserializing like the engine does currently? Thanks for your input as well!