64 books in series

Fighting Fantasy

Fighting Fantasy is a 61-book series with 64 primary works first released in 1982 with contributions by Steve Jackson, Ian Livingstone, Andrew Chapman, Robin Waterfield, Steve Jackson, Mark Smith, Jamie Thomson, Peter Darvill-Evans, Luke Sharp, Paul Mason, Steve Williams, Martin Allen, Keith Martin, Jim Bambra, Stephen Hand, Dave Morris, Keith P. Phillips, Jonathan Green, ian-livingstone, and Rhianna Pratchett.