This Starlux plastic castle is made from the same mold parts that the later LudoRev castle playsets were made of.  More accurately, LudoRev recast the main starlux parts and created several castle playsets (Robin Hood, Vikings, and Crusades) all variations made simple by the modular style of parts, of course the starlux one features a lot of interesting parts the Ludo Rev skipped or replaced.

  I had one and painted it once.   The first image, no base, is the Starlux.  the second is my Ludorev.