Callahan's Crosstime Saloon is a 1997 graphic adventure developed by Legend Entertainment. Based on the Callahan's Place book series by Spider Robinson, the game follows Jake Stonebender, narrator of the books, through six comic science fiction adventures. Taking the role of Jake, the player solves puzzles, converses with characters from the Callahan's Place series and visits locations such as the Amazon rainforest, Transylvania and outer space. (wikipedia.org)