[1] T1 culminates in a ruined moathouse where agents secretly plan to re-enter the Temple and free the demoness Zuggtmoy, imprisoned therein.

This allied army clashed with a horde of evil men and humanoids, including orcs, ogres and gnolls, at the Battle of Emridy Meadows.

Men-at-arms from Furyondy and Veluna united with dwarves from the Lortmils, gnomes from the Kron Hills, and an army of elven archers to face the threat of the Horde of Elemental Evil, consisting largely of savage humanoids such as orcs, ogres, and gnolls.

The arrival of the elves from the shadows of the Gnarley Forest turned the tide of battle, trapping the savage humanoids against a bend in the Velverdyva where they were routed and slaughtered.

The Citadel was notable for its absence at this pivotal moment in the history of the Flanaess, and their failure to take part in the Battle of Emridy Meadows contributed to the group's decline and eventual disbandment.

Spellcasters loyal to the goodly army cooperated on a spell of sealing that bound the demoness Zuggtmoy (a major instigator in the Horde of Elemental Evil) to some of the deepest chambers in the castle's dungeons.

The Viscount of Verbobonc and the Archcleric of Veluna became increasingly concerned, and cooperated to build a small castle outside the Village of Hommlet to guard against the possibility of the Temple rising again.

Things quieted down for another four years as the area returned to peace and normalcy, but in 578 CY evil began to stir again, with groups of bandits riding the roads.

[1] The Temple of Elemental Evil was originally intended to bear the module code T2 and serve as a true sequel to The Village of Hommlet.

T1-4 The Temple of Elemental Evil was written by Gary Gygax with Frank Mentzer, and published by TSR in 1985, incorporating T1 The Village of Hommlet.

The combined campaign then culminates with the GDQ series, incorporating modules G1-G3 Against the Giants; D1-D3, which introduced D&D fans to drow elves for the first time; and finally Q1, Queen of the Demonweb Pits, in which the heroes fight against the spider demon Lolth herself.

[3] In a retrospective review of The Village of Hommlet in Black Gate, Bob Byrne said "Gygax packs in a TON of information into this module.

[8] Lawrence Schick, in his 1991 book Heroic Worlds, says of The Temple of Elemental Evil, "If you like huge classic dungeon crawls, this is probably the best of the lot.

"[1] John ONeill for Black Gate, said "The Temple of Elemental Evil may be Gary Gygax's crowning achievement as a dungeon designer.

"[10] Scott Taylor for Black Gate commented that "Although expertly covered by artist Keith Parkinson, the remainder of The Temple of Elemental Evil veritably screams that it was birthed in a maelstrom of financial panic and leadership void.

[14] In the same month that DDO's update went live, the online D&D game Neverwinter also released an in-game version of the Temple of Elemental Evil.