Wikipedia
Synthajoy
Synthajoy is a science fiction novel by D. G. Compton. originally published in 1968 as an Ace Science Fiction Special in the United States and in hardcover by Hodder & Stoughton in Great Britain. An Italian translation appeared in 1972. Gregg Press issued an archival edition in 1977. Orion Books revived the novel as part of its Gateway line in 2011.