GURPS Third Edition is a 91-book series with 91 released primary works first released in 1988 with contributions by Lee Gold, Hunter Johnson, Steve Jackson, Kirk Wilson Tate, Brian J. Underhill, Stephan Jones, J.M. Caparula, Graeme Davis, Kevin Andrew Murphy, David L. Pulver, Chris W. McCubbin, Sean Punch, Thomas Kane, Ann Dupuis, Liz Tornabene, Lynda Mannin-Schwartz, Rob Smith, C.J. Carella, Robert M. Schroeck, Michael Hurst, Thomas M. Kane, Spider Robinson, John M. Ford, Aurelio Locsin III, Sean Barrett, Janet Naylor, Caroline Julian, Jeff Koke, Lane Grate, Ken Walton, Nigel Findley, Jon F. Zeigler, Stephen Dedman, Loyd Blankenship, Malcolm Dale, Klaude Thomas, Phil Masters, S. John Ross, Kenneth Hite, Craig Neumeier, Michael S. Shiffer, Terry Pratchett, Loren K. Wiseman, Sean M. Punch, John Goff, David Pulver, David Thomas, Martin J. Dougherty, Neil A. Frier, Michael S. Schiffer, David Nilsen, Andy Slack, Elizabeth McCoy, Walter Milliken, William H. Stoddard, Douglas E. Berry, Steffan O'Sullivan, Gene Seabolt, James L. Cambias, Lisa J. Steele, Hans-Christian Vortisch, Stephen Kenson, Lynette Cowper, Stefan Jones, Michele Armellini, Robert Schroeck, Jon Zeigler, Thomas L. Bont, Christopher Thrash, Robert M. Prior, Paul Drye, Hans Rancke-Madsen, Robert Pryor, Brian Underhill, John J. Miller, and Glen Johnson.