Overview
Olarius is a tiny moon with a frigid atmosphere, and its surface is a barren wasteland covered in permafrost.
Trade
The Free Neogi trading company uses Olarius to store slaves kidnapped from Oerth and other planets. The slaves are dumped on the frozen wasteland that makes up the moon's surface, where they quickly die from exposure. The frozen bodies are then sold to other neogi (and the occasional illithid ship) as food.
The Free Neogi company maintains a fleet of spelljammers who protect the moon from nosy outsiders.