The Tulu are an evil and devious race, demonstrating the canny wickedness of Faustian devils and the perverse pleasures of hentai tentacle pornography.
A portmanteau of the words Architecture and Ecology, arcologies are megastructres that are built with an eye towards environmentally friendliness.
A common mistake when writing adventures set in deserts is to assume that the climate is too ferociously hot to wear armor. Historically, most battles in deserts involved troops dressed in protective armor. Although they would have been miserable during the hottest part of the day or the hottest part of the year, desert weather isn't intolerably hot 24/7.