Hi. Firstly, I want to mention that this is not an engine war thread. I wish to know if there are tools that bring an entire scene from Unity to Unreal and from Unreal to Unity. It would be nice to be able to build your game in the two engines in the same time...or start a project in one and finish in other. As for things that could be transfered, beside fbx files: Metadata conversion Objects location, rotation and scale Shader data conversion Lights ... If there is such a thing, it would be nice.