Thar Desert natural vegetation of this dry area is classed as Northwestern thorn scrub forest occurring in small clumps scattered more or less openly. Density and size of patches increase from west to east following the increase in rainfall. The natural vegetation of the Thar Desert is composed of the following tree, shrub and herb species: The endemic floral species include "Calligonum polygonoides", "Prosopis cineraria", "Acacia nilotica", "Tamarix aphylla", "Cenchrus biflorus". The Thar Desert is the most widely populated desert in the world, with a population density of 83 people per km. In India, the inhabitants comprise Hindus, Muslims, and Sikhs. In
The Orcs of Thar the "D&D Master Set", clerics and magic-users of the humanoid races. The "Dungeon Master’s Booklet" provides information about the best way to stage and present humanoid adventures, along with adventure outlines. It presents details of the orcish city Oenkmar, allowing humanoids and humans to explore, and lists the rules for "tlachtli", a ball game played in Oenkmar. The board game included is called Orc Wars, and is set in and around the Broken Lands and features a power struggle to become the top humanoid. Jim Bambra reviewed "The Orcs of Thar" for "Dragon" magazine #148 (August 1989). Bambra wrote that