Discs, Rings, and Spheres

Want to populate your science fiction setting with memorable places and structures? Then this is the guide for you. Disks, Rings, and Spheres takes a deep dive into science fictions “Big Dumb Objects” (or “BDOs”). The 31 items listed in this product range from the terrestrial (such as self-contained arcologies), to the stellar (such as ringworlds), and beyond. In addition, not only is a brief history of the object given, but also notes on how it is created, and how such a BDO can be used on your campaign.