I made a space ship obstacle course game using Amazon Lumberyard (https://aws.amazon.com/lumberyard). The tunnel sections were modeled in Blender and distributed along a 3D course with the Spline Component. This is just an in-game video, but I'm considering uploading a video showing how it was built too!
Link to the entry
https://ldjam.com/events/ludum-dare/42/