Hey guys, I'm excited to share that thanks to Taniwha's excellent work on the importer, we now support direct upload of MU files at Sketchfab (yes, we run Blender on our backend to crunch files ;-). Go give it a try! http://blog.sketchfab.com/post/98386380804/kerbal-space-program-we-have-liftoff Cheers, Bart