Degonite

Degonite are one of the independent civilizations in Master of Orion.

Background
You arrive at a planet with no obvious signs of civilization. You can detect no power sources anywhere. However, upon close inspection, what you thought were mountain ranges turn out to be vast cities of stone. The natives are indeed civilized. Their construction techniques are awe-inspiring, though they are clearly not capable of space flight. They do however have some requests.

Characteristics
A kritarchy is a system where the power belongs to courts of judges, who therefore assume executive and legislative powers in addition to judicial.