Vendiroth is a hell planet, one that can barely be described as habitable by human standards. It is the moon of a gas giant, one located within close enough to the sun to be a hot Jupiter. Thus, it’s seasons are eclectic. Being close to the sun, it is normally hot. It’s own axial tilt means that there are no true ‘seasons’, only night and day. The area in full day is hot to the point that standing in direct sunlight is quickly fatal. However, the reflection of light from it’s host planet means that even at ‘night’ it is rarely truly dark. Only during the brief time in which it is obscured by the host planet does it ever truly get dark, and this winter drops the entire planet into brutal cold.
It is not a colony world, at least, not intentionally. In the years before the cataclysm, Vendiroth served two purposes. There was a prison, used to incarcerate some of the worst the universe had to offer. It was said that summary execution was preferable to imprisonment on Vendiroth.