Just as Planned
Arcadia is, according to the locals, so named because, prior to its Imperial settlement, it was a paradise world. A commonly cited example is that the sky was an aesthetically pleasing azure colour. Several decades later, widespread industry has begun to take its toll on the planet. The sky is a muddy brown and the air is hazardous to human life in places. The name is considered a cruel irony now by the locals. Imperial histories of the planet are unable to exactly pinpoint this idyllic time.
A temperate world, the planet’s technology level has advanced beyond feudal but current era tech is still sparse. Out in the country, isolated areas stubbornly refuse to swap from their primitive weapons.
Also present are several ruins from prior civilizations and Mechanicus dig sites are fairly common across the planet.
The capital city, Prospera, is the very image of a prosperous, ordered, and up and coming planet’s capital but this is only a veneer. Below the surface, the rot is spreading.