This is a great looking set of dungeon tiles that can create a wide variety of rooms and passageways in different sizes. Room sizes include 2x2, 3x3, 4x4, 5x5, and 6x6, each with 1 to 4 exit variants, and the hallway sections (all of which are 2 squares wide) include four different lengths, two dead ends, a corner, and 3- and 4- way intersections. The artwork is excellent, reminiscent of the art found in classic RPG rulebooks, and matches their other products seamlessly. The rooms are featureless, so you will need to provide your own doors and other features (doors are available in some of OSD's other products).