The upcoming 50 Years of Text Games book will hopefully* include this set of two-page spreads with maps of two versions of the classic parser game Adventure, which both popularized and named the text adventure and adventure game genres. Famously, the game was originally created but abandoned by caver/coder Will Crowther, then found a year later and significantly expanded by grad student Don Woods.

(* My take on the map is based on an uncredited vintage plotter print; I’ve redone the labelling, no...