This is three parts each from the gamma and epsilon ruins. For each there is one bottom, one mid (stackable) and one top. You can leave the mid out for more variation. The full set includes many more versions. Each ruin has three mids and two tops. And each model comes with and without scifi greebles.
https://www.kickstarter.com/projects/terrain4print/filia-ferrum-stl-file...
