Larry Niven

World of Ptavvs is a science fiction novel by Larry Niven, first published in 1966 and set in his Known Space universe. It was Niven's first published novel and is based on a 1965 short story of the same name.

Dream Park is a 1981 novel written by Larry Niven and Steven Barnes set in a futuristic amusement park of the same name. It was later expanded into a series of books. The books describe a futuristic form of live action role-playing games, although the term was not in use when the original novel was published. The …