TSR released a boxed set, Kara-Tur: The Eastern Realms, describing the region in greater detail, with two 96-page books and maps. In the process of adapting the setting to the Forgotten Realms, the size of the continent was scaled down significantly. The ten distinct nations and regions described in the boxed set and their real-world analogues include: Shou Lung: Imperial China during periods of centralized government T'u Lung: Historical China during eras of political disunity, e.g. the Warring States period Wa: Feudal Japan (Edo/Kamakura period) Kozakura: Japan (Feudal/Sengoku period) Northern Wastes: Historical Eastern Siberia Tabot: Tibet Koryo: Korea The Island Kingdoms: Pre-colonial civilizations of Indonesia and the Philippines. The Plain of Horses: Historical Mongolia. This region is the Kara-Tur portion of the Hordelands, also known as the Endless Wastes. The Jungle Lands of Malatra: Pre-colonial civilizations of Indochina (historical versions of the Khmer Empire and Vietnam) as well as the hill tribes inspired by their real-life Southeast Asian counterparts. In 1989 a printing of Trail Maps for Kara-Tur appeared as part of Advanced Dungeons & Dragons 2nd edition. In 1990 the maps were again included in The Forgotten Realms Atlas. Later that year TSR converted the monsters of Kara-Tur to second edition Advanced Dungeons & Dragons rules as part of the Monstrous Compendium series. After 1990, TSR ceased publishing new material related to Kara-Tur. The setting was, however, occasionally referred to by other TSR products such as Spelljammer and Ravenloft. The setting of Kara-Tur still exists on Abeir-Toril in Dungeons & Dragons 3rd edition and is often mentioned in Forgotten Realms supplements. Characters and artifacts from Kara-Tur sometimes show up in Faerûn, but beyond that there is little interaction between the continents. The 2015 release of Sword Coast Adventurer's Guide, a supplement for Dungeons & Dragons 5th edition, introduced Kara-Tur to the fifth edition of Dungeons & Dragons. There is a brief description of the land along with references throughout the book to its culture and how certain classes or backgrounds might fit in there. Reviewer Michael Mullen, looking at Kara-Tur before the publication of the boxed set, stated that players would probably like the world, but that it would depend largely on how familiar the DM was with Oriental culture or Japanese movies and television. He remarked that the "usual opposition, if not human, will be from the spirit world", rather than more conventional battles versus monsters. Game studies