Puzzlehunt I: The Microsoft Games (August 13-15, 1999)
*Theme: Olympics *Participants: 35 teams, 275 players *Hosted by: TLA (Bruce Leban, Dan Westreich, Gordon Dow, Jason Woolever, Matthew Kotler, Roy Leban, Sam Sherry, Sarita James, Scott Ruthfield, and Shannon Talbott) *Won by: Killer Bees *Awards: Gold, silver and bronze medals *Memorable Events/Puzzles: This first hunt was a three-day hunt, running Friday afternoon to Sunday night. The event was three rounds (Bronze, Silver, Gold). Killer Bees won the Gold round, the Silver Round, and the hunt. United Farm Workers won the Bronze round.Puzzlehunt II: Age of Puzzles (April 1-2, 2000)
*Theme: Age of Empires - The puzzles from this hunt can be found herePuzzlehunt III: You Don't Know Puzzles (November 4-5, 2000)
*Theme:Puzzlehunt IV: Clue (November 3-4, 2001)
*Theme: CluePuzzlehunt V: Mission: Impuzzible (September 21-22, 2002)
*Theme: '' Mission: Impossible'' *Participants: 45 teams, 469 players (2 teams finished) *Hosted by: SCRuBBers (Troy Barnes, Josh Benaloh, Steve Dupree, Matt Lyons, Becca Olsen, Deborah Pierce, Jon Pincus, Dan Simon, Terence Spies, Dave Thaler, Jay Thaler, and Jeff Wallace) *Won by: Cracking Good Toast *Awards: Mission: Impuzzible portfolios *Landmarks: First and second place teams were separated by 11 minutes.Puzzlehunt VI: TimeCorps (May 17-18, 2003)
*Theme:Puzzlehunt 7: Alice in Puzzlehunt (March 20-21, 2004)
*Theme: ''Puzzlehunt 8: The Hard Way (February 19-20, 2005)
*Theme:Puzzlehunt 9: Doomsday (November 5-6, 2005)
*Theme:Puzzlehunt A: Atlantis (February 10-11, 2007)
*Theme:Puzzlehunt 11.0: Caught in the Net (October 6-7, 2007)
*Theme:Puzzlehunt 123: Jeopardy!/Puzzlehaunt! (February 28-March 1, 2009)
*Theme:Puzzlehunt 14: Travel the Number 14 (September 10-11, 2011)
*Theme: Trains *Participants: TBA *Hosted by: Liboncatipu (Ben Andrews, Jen Chalfan, Jamie Eckman, Jeff Ford, Jonobie Ford, Drew Hoskins, Mike Janney, Jason Lucas, Chris Moore, Andy Rich, Rehana Rodrigues, Deanna Rubin, Adam Ruprecht) *Won by: Death of Dr. Zero (Redmond); Friday the 13th Part VI (Bay Area) *Awards: Individually personalized wooden train whistles *Memorable Events/Puzzles: Four "whistle stops", each designed to be projected in a conference room and solved by the entire team *Landmarks: First hunt with explicit rules governing how teams were provided with hints and data confirmation.Puzzlehunt 15: The Motion Picture Post-Apocalyptic (June 21-22, 2014)
*Theme: Movies *Memorable Events/Puzzles: Despite the hunt being modular, with each author choosing their own theme, the final meta combined all of the module themes into a single runaround puzzle. *Landmarks: First hunt constructed in a modular fashion, with multiple individuals and teams contributing small modules rather than one team constructing the entire hunt. *Won By: Will It Blend?Puzzlehunt 16: Library Island (April 18-19, 2015)
*Theme: Books/Library *Participants: 80 Teams, 832 Players (53 teams finished) *Hosted by: Organizers: Giovanni Della-Libera, Andrew Paulsel; Authors: Jonathan Birch, Amos Eshel, Nathan Figueroa, Rorke Haining, Andrew Hoskins, Roy Leban, Philip Loh, Jay Lorch, Jesse McGatha, Richard Thames Rowan, Guy Srinivasan, Dana Young, Kenny Young; Assistants: Geoffrey Antos, Andrew Ryder *Memorable Events/Puzzles: The opening module was a physical book, ''The Librarian's Almanaq'' by Roy Leban, delivered by a courier to the opening session and later sold on Amazon. *Landmarks: First hunt to use a final puzzle with a timed unlock system to allow more than 66% of teams to finish the final puzzle. *Won By: Will It Blend?Puzzlehunt 17: KPUZ Music Festival (May 21-22, 2016)
*Theme: Popular Music *Participants: 79 Teams, 793 Players (27 teams finished Diamond metameta, 44 teams finished Platinum metameta, 50 teams finished Gold metameta) *Hosted by: Full module authors and mentors: Amos Eshel, Bruce Leban, Dana Young, Guy Srinivasan, Kenny Young, Megan Quinn, Michael Beyer, Morgan Brown, Robin Schriebman, Roy Leban, Sean McCarthy; Mentors: Glenn Willen, Jay Lorch, Jesse McGatha; Individual puzzle authors: Adam Skalenakis, Greg Filpus, Jen Traeger, Ken Pacquer, Philip Z Loh. *Memorable Events/Puzzles: One module included numerous short covers of "smashed-up" songs, with music from one song and modified lyrics derived from a different song. Lack of coordination between module authors caused there to be more cutout puzzles in this hunt than ever before. *Landmarks: First hunt run completely by authors who were also competitors in the event. First hunt to provide "fast forwards" which allowed teams to get hints on the metameta puzzles in exchange for points (teams that took fast forwards were ranked below teams that did not take a fast forward). *Won by: Will It Blend?Puzzlehunt 18: The Puzzling Zone (September 16/17, 2017)
*Theme: Twilight Zone *Participants: 75 Teams (22 finished) *Hosted by: SCRuBBers *Memorable Events/Puzzles: Four teams finished before Midnight on Saturday, and two more teams were ready to complete the final in-person final puzzle before Midnight. *Landmarks: First hunt where top 10 teams (instead of top 3 teams) received a trophy, a custom pin. *Won by: Will It Blend?Puzzlehunt 19: Channel 19 (May 5-6, 2018)
*Theme: Television *Hosted by: Module hunt *Won by: There's Always Puzzles in the Banana StandPuzzlehunt 20: (May 4-5, 2019)
*Theme: Theater *Participants: 100 Teams (30 finished) *Hosted by: Full module authors: Aaron Shaver, Amos Eschel, Asia Comeau, Bruce Leban, Dana Young, Derek Young, Elizabeth French, Jason Deakins, Jay Lorch, Jonah Ostrof, Justin Melvin, Kenny Young, Margaret Urfer, Megan Quinn, Morgan Brown, Natalie Parisi, Roy Leban *Won by: The Usual SuspectsPuzzlehunt 21: (May 1-2, 2021)
*Theme: Video Games *Participants: 170 Teams (6 finished) *Hosted by: Full module authors: Adam Young, Bob Ma, Dana Young, Dave Miller, Derek Young, Jason Deakins, Jonah Ostroff, Josie Effinger, Kenny Young, Matt Du, Megan Quinn, Morgan Brown, Peter Sarrett, Philip Z Loh, Robb Effinger, Sean McCarthy *Memorable Events/Puzzles: This hunt contained two unique methods of acquiring hint coins, implemented to account for the pandemic-imposed virtual nature of the event. One method involved navigating a Minecraft version of the Microsoft campus and accomplishing various in-game tasks. The other, called Achievements, asked players to complete activities in the real world and submit photographic or video proof of their accomplishments. *Won by: Imposters So Meta Even This AnagramPuzzlehunt 22: Puzzlehunt Parallax (September 17-18, 2022)
*Theme: Alternate Earths *Participants: 169 Teams (10 finished) *Hosted by: Thread authors: Aaron Shaver, Adam Leban, Bruce Leban, Emily Dietrich, Greg Cooper, Greg Filpus, Guy Srinivasan, Jesse McGatha, Jonathan Berkowitz, Justin Melvin, Keith Jackson, Michael Beyer, Richard Thames Rowan, Roy Leban, Tanis O'Connor, Thomas Snyder *Landmarks: First hunt hosted in the threaded format; hosting team was split into three planning groups, allowing for larger, more interconnected rounds. *Won by: Will It Blend?External resources