"We have a really complex kind of color theory system so they all obey rules, like leaves having complimentary colors compared to the grass and things like that," art director Grant Duncan says in a new video. "And the same goes for silhouettes. So, if a planet's very hot, we'll have things like everything becomes a little bit more dried out or you'll get more sharp shapes."

As players journey toward the center of No Man's Sky's universe, the creatures and landscapes will become more "unsettling," Duncan says. That sense of discovery and weirdness is a main feature that will drive players through the game -- not that Hello Games expects anyone to actually reach the center of No Man's Sky's universe.