Templar archives

The templar archives are dark, mysterious buildings that serve as training centers for the legions of both the high templar and, during the Brood War, the Dark Templar.

Overview
The high templar, charged with wielding the awesome psionic powers of their race, use the archives to access memories and strands of experience from the Khala and thereby gain knowledge inaccessible to ordinary warriors.

StarCraft
In StarCraft, the archives allow the production of and researches their more advanced psychic abilities. In StarCraft: Brood War, the archives also allow the production of from the gateway and researches dark archon abilities and upgrades.

StarCraft II
The templar archives in StarCraft II is a requirement for producing in addition to providing upgrades such as psionic storm and Khaydarin Amulet. It no longer provides the ability to summon dark templar; this has been moved to the dark shrine.

Development
The Khaydarin Crystal Amulet upgrade was removed as of patch 1.3.

Development
The templar archives didn't change very dramatically during the development of StarCraft II. Aside from some texture polish, it shipped in the final game unaltered.