Games Paper Apps Dungeon: pocket-sized, spiral-bound, randomly-generated paper adventures Mark Frauenfelder
useful stuff If you need a super-thin lead pencil to make maps for your 1980s dungeon crawler videogames, this one will do Mark Frauenfelder
books Combat Heroes: the 1980s RPG gamebook craze got so wild they were implementing multiplayer grid-based dungeon crawlers in print Rob Beschizza