So long as you can export it into Blender and/or Milkshape if you wish to make something that requires a .dts, if you're just wanting to make a brick with the .obj to .blb just make sure you don't have any n-gons, rectangles and triangles only.
I have only seen solidworks used in an industrial setting, but but id be pretty interested in seeing a solidworks blockland model.My dad is a freaking solidworks expert, I'm sure I can ask him anything you need to know.
I am now going to model all of my blockland addons with Catia and gsd, a software used primarily for highly advanced aerodynamic systems.
So long as you can export it into Blender and/or Milkshape if you wish to make something that requires a .dts
Thus far these are the only two that I know of that can export .dts
It looks cool, but only thing is I only know how to use solidworks well my teacher taught it to me, that's why i'm not trying to use any of the other programs like Blender, 3DS max, and etc.