William A. Barton reviewed Umbar in The Space Gamer No. 61.[1] Barton commented that "Umbar is quite worth the price if you're looking for a place for fantasy adventures that has the flavor of Middle-Earth, yet is far enough from the occurrences of the books to leave plenty of room for independent action."[1]
Jonathan Sutherland reviewed the Umbar - Haven of the Corsairs for White Dwarf #50, giving it an overall rating of 7 out of 10, and stated that "Covered in a most impressive manner are the full plans of the city together with the sewers, water supply, house plans, taverns, military structures, all those who live in them; the numerous Guilds, smugglers, City Guard, religions, ships and the sailors who frequent the city."[2]