Heroes of Unaria
Mechanica is a small city state populated by sentient humanoid constructs. The city state was originally built by the High Wizard Enzo as an experiment, but the constructs rebelled and gained their independence. Now the city state is a neutral power that prefers to stay out of politics. Mechanica is rumored to be more powerful militarily than Tirthrael, but since the constructs are heavily neutral, no one has ever seen the cities compete.