in 2007 at the GenCon game convention
The Lost Caverns of Tsojcanth is a revised and expanded version of
The Lost Caverns of Tsojconth, a tournament adventure that Gygax wrote for WinterCon V, a
gaming convention sponsored by the Metro Detroit Gamers (MDG) in 1976. It is based in part on one of
Rob Kuntz's dungeon levels, as Kuntz helped Gygax revise the tournament version. This original version consisted of eight loose sheets in an outer folder, with a zip-locked bag; only several hundred copies were printed.
Lawrence Schick later suggested that "there's evidence that Gary considered Tsojcanth part of a longer
Greyhawk campaign, placing the adventure between
T1–T4 The Temple of Elemental Evil and
WG4 The Forgotten Temple of Tharizdun. (By this reckoning,
The Village of Hommlet,
The Temple of Elemental Evil, and
Tsojcanth are thus the "lost" WG1 through WG3 modules.) So,
Tsojcanth was published in the S series because it got completed out of order, but was too good to delay." This version of the module was revised and expanded from the original, and included two 32-page books, with an outer folder. While in the middle of working on
Temple of Elemental Evil, Gygax added a complete outdoor story arc to the original tournament story arc that leads to the caverns.
The Lost Caverns of Tsojcanth includes new spells, and many new monsters which were later featured in
Monster Manual II. In 1987,
The Lost Caverns of Tsojcanth was revised and included in TSR's "supermodule"
Realms of Horror. In 2007, it was updated to v3.5 and included as one of three parts in ''Iggwilv's Legacy: The Lost Caverns of Tsojcanth'', an adventure available online from
Wizards of the Coast. Both versions of the module included
monsters that were later included other
Dungeons & Dragons products. The monsters introduced in the original un-published version were updated for
AD&D rules and included in the first edition
Monster Manual. Monsters appearing in the published version included the
demon princes Baphomet,
Fraz-Urb'luu,
Graz'zt, and
Kostchtchie, who later appeared in the original
Monster Manual II. The published module's cover features an illustration of a
behir by
Erol Otus. Lawrence Schick writes in the foreword that "
S4 The Lost Caverns of Tsojcanth marked the end of the S series—and rightly so, because despite being based on a gilded-hole dungeon originally designed for a tournament in 1976, its updated version really belonged more to the '80s campaign-setting school of design than to the wild-and-woolly '70s. S1 through S3 were standalone modules that could be easily dropped into any DM's campaign, but
Tsojcanth is firmly based in Gary's
World of Greyhawk." A remastered version of the adventure was published in the anthology
Quests from the Infinite Staircase for
Dungeons & Dragons 5th edition on July 16, 2024. ==Reception==