Doom: The Dark Ages. The Forsaken Plains.

I did the worldbuilding with existing kit and did the floors and terrain. The props (especially, the fallen Atlan) were done by other people, including the large engine assets in the Hell Carrier. I received a ton of feedback and assistance from my Lead, Dan Scanio. Level Design and initial blockout was done by Holden Stevens. Lighting was done by Jim Gibbs.