The developers of Worlds Adrift currently have three types of creature in the game. Yes, just three. If that sounds like a rather small number, it gets better when one realizes that those three creatures are meant to behave in a rational and useful manner, like actual animals looking for food and avoiding harm while exploring the procedural landscape. A new development update explains just how these creatures are meant to operate and what systems go into creating a suitably intelligent sky beetle.
Rather than having set pathfinding, each creature will search for food and head toward it while remembering the trail back to its familiar locations. The beings will also try to reproduce and avoid predators, behaving reasonably when coming across both players and other creatures. This will have an impact on building materials and resources, to boot. A quick demonstration of the extant creatures in action is just below.