disconj writes: Over at Wired, Ethan Gilsdorf interviews Jon Peterson, author of the new book Playing at the World . Gilsdorf calls it 'a must read,' though he cautions it 'is not intended for a general audience. It’s a book for geeks, about geeks.' It is apparently an insanely-detailed history of role-playing games and wargames, including everything from Prussian kriegsspiel up to Dungeons & Dragons and the beginning of computer RPGs (but none of that heathen stuff after 1980). Peterson says in the interview that he wanted to write a history of these games 'worthy of the future they are creating.' He apparently spent five years on the project, including unearthing a huge trove of previously-unknown historical documents.