Although Kaller was a cold planet, the world, situated in a binary star system, had complex seasonal variation that saw mild weather shift into extreme conditions within days, allowing Kaller to also be a temperate world. The rapidly changing climate, a side effect of Kaller’s binary star system, meant that Kaller could go from an extreme heat to a deep cold over the course of a few days. It was also situated at the intersection of three different hyperspace routes. Most Kallerans lived along freshwater rivers, building stone buildings in smaller towns and duracrete structures in cities.