A Death World is a world teaming with all sorts of life. Mostly, they are unexplored, but often they have become colonized through one or two large facilities. They are called Death Worlds, though, because the planets are quite literally a living hell. Whether it be a tropical jungle with masses of poisonous apes and behemoth lizards or a desiccated desert with giant, armoured scorpions and looming buzzards, they have certain resources that you can find no where else, while being a challenge walk a klom through. With the Kroot officially becoming allies of the Imperium, and seeing the Death Worlds as a challenge, they have willingly colonized a few Death Worlds in the name the Imperium.
Death Worlds are noted on the map with a crossed,red system marker.