Been fooling around with plans for a modular dungeon piece set, and figured out what pieces would be a useful start. But before I begin, better think of the pro's and con's of such a task.
The major pro for dungeon pieces is that they provide a third dimension to the dungeons and ruins (or even space hulks) that the characters and players are exploring. It just looks better than the map drawn out on a dry-erase sheet, especially from a modeller's point of view. Some people I play with just do better with physical representations of combat and such, and an actually 3d representation of such environments is useful.
The two major drawbacks however is the lack of flexibility of pieces and the price tag. With only a set of pieces, you can only arrange the pieces a certain number of ways, or have rooms be only a certain size till you decide to make a new piece to meet the requirements you want. And second, the number of molds to make a plain set (like the picture above) is $80 plus the paints and base materials. To make a decent, and varied set of pieces, you will probably be spending $200 on molds plus all the base materials. Then, the time to cast all the blocks.
Building a dungeon piece set is a lengthen project, but can still merit a sense of accomplishment if done right. But till I can afford it, it's gonna be dry-erase grid sheets.
