High Quality Content by WIKIPEDIA articles! Conquests of Camelot: The Search for the Grail is a graphic adventure game released in 1989 by Sierra. It was the first game in the Conquests series designed by Christy Marx and her husband Peter Ledger. The only other game in the series was 1992`s Conquests of the Longbow: The Legend of Robin Hood. Marx did the majority of the design work while Ledger created the game and package art.