Warm

Warm worlds come in two main flavors, depending on the prevalence of water. “Desert worlds” are hot enough or arid enough to be deprived of most surface water. Any life on such a planet has to be capable of extracting water from living prey, air currents or moisture supplies deep underground. Humans can survive on warm worlds without more than appropriate clothing, but desert-world humans must learn sophisticated techniques of water prospecting and welldrilling in order to maintain their agricultural systems. Warfare often revolves around these water systems.

The other common variety of warm world is one blessed with an abundance of surface water. These worlds tend to be covered with plant and animal life, teeming with thick jungles and vast mats of sargasso on seas that boil with piscids and other alien life analogs. These worlds can be quite prosperous for humans if the native life is edible, but inhabitants are often forced to deal with large predators and a vividly ingenious native ecology of disease.