A while ago we discussed on the RND G+ community the possibility of collecting a bunch of paper “doll-house” rooms to use for a random tower-crawl.
Ray Otus posted a template that makes it easier to produce this kind of paper dolls.
Here is an alternative that is slightly harder to assemble but has the advantage of using almost all the available surface when printed on A4 paper:
The arrangement is very similar to that proposed by Ray, but it uses a rectangular format (closer to the A4 format) and has not central hole. I hope that the images will make clear how to build the doll-house.
Here are a few images of the final result.