Oriental Adventures (abbreviated OA) is the title shared by two hardback rulebooks published for different versions of the Dungeons & Dragons (D&D) fantasy roleplaying game. Each version of Oriental Adventures provides rules for adapting its respective version of D&D for use in campaign settings based on the Far East, rather than the medieval Europe-setting assumed by most D&D books. Both versions of Oriental Adventures include example campaign settings. Advanced Dungeons & Dragons The original Oriental Adventures () was written by Gary Gygax, David "Zeb" Cook, and François Marcela-Froideval, and published in 1985 by TSR, Inc. as a 144-page hardcover for use with the Advanced Dungeons & Dragons (AD&D) 1st edition rules. The book was edited by Steve Winter, Mike Breault, Anne Gray, and Thad Russell. The book's cover art was by Jeff Easley, with interior illustrations by Roger Raupp, James Holloway, Easley, and Dave Sutherland. Campaign features The book provides rules for ten character classes and three races to be used in place of standard AD&D classes and races. The book presents new versions of the barbarian (here a steppe warrior or forest and jungle dweller) and monk, as well as new classes such as the ninja, kensai, wu-jen, and shukenja. Kensai "seek to perfect their weapons technique to the exclusion of all else. They are deadly in combat, but cannot use magical weaponry because it detracts from the appreciation of their skill". Wu-jen are magic-users who must obey their personal taboos to avoid losing all spell powers. Shukenja are clerics who become penalized if they kill enemies too freely. A ninja character must take one of the other classes as well as the ninja class. In keeping with their secret nature, ninja use their normal class as a cover identity; a ninja must be careful to keep his identity secret, as loss of honor (and sudden death) may occur if the PC is unmasked. The other classes introduced in the book are the sohei, the bushi (peasant warriors), the samurai, and the yakuza. The three new character races are the korobokuru (equivalent to dwarves, without the bad temper and greediness), the hengeyokai (intelligent animals who can shape-change into human form), and the spirit folk (humanoids whose life force is tied to a particular location). The book draws on the history of China, Korea, and Japan, and includes information on families, clans, caste, and honor. The original Oriental Adventures introduced