There are six improper regular tessellations, pairs based on the three regular Euclidean tilings. The recursive process of substitution tiling is a method of generating aperiodic tilings. Substitution tiling systems provide a rich source of aperiodic tilings. Several methods for constructing aperiodic tilings are known. There are a few constructions of aperiodic tilings known. All other regular and semiregular tilings are achiral. There are 673 6-uniform tilings of the Euclidean plane. There are 332 5-uniform tilings of the Euclidean plane. There are 151 4-uniform tilings of the Euclidean plane. There are 61 3-uniform tilings of the Euclidean plane. There are 3 types of monohedral convex hexagonal tilings. There are no regular plane tilings of star polygons. Other methods also exist for describing polygonal tilings. There are several different variations of Penrose tilings with different tile shapes. HyperRogue is a roguelike game set on various tilings of the hyperbolic plane.