I used to play this game on my old computer, and was unable to build downloaded sets. Perhaps, if someone was able to create a addon or plugin, or better yet an update that allowed for a more accessible way of getting downloaded sets without having to go through the whole process that I've personally spent several full days trying and failing to perform. This game would be the best and most creative building game that I've ever played, if a more accessible way of getting downloaded sets to work on this game was added.