Tahu

Tahu was the capital city of Zypher. Points of interest included Worthington's laboratory.

Battles took place just outside of the Tahu city gates during both the Great War of Zypher and the Empire War in the plains and riverbanks respectively.

Behind the scenes
Tahu was the name of the planet in Inevitable Fate written by Scott Highland. Tahu was named after the Lego Bionicle character of the same name.