I've finally played all the modules in Kittens + Beasts.
Kittens - A good addition that add incentive to be first
Beasts - I found this to be kinda meh. I didn't like that you can only get beasts on the first day which makes it really easy to just skip the whole module.
Events - I really enjoyed this module. The events really add additional layers of strategy and time sensitive ways to score points.