After 48 hours of play I can honestly say that this game continues to hold my interest. It has a good amount of challenge as your Sapien society grows you have to manage your resourses closely. Mammoths cause havoc unless pay attention to them. There are lots of things to like about this game and it is well worth the purchase price.

The game is still being developed though and there are some things that do need to be addessed. As the game progresses there needs to be events or some challenge that goes beyond simple survival.
The UI could be simplified and offered a feature to allow the selection of more than 1 Sapien at a time when trying to move the "Tribe" this can be long and tedious. As we know early Sapiens across the world were nomadic so to be so static in this game doesnt lend itself to the immersion of it.
It's a minor thing but a multiplayer option would be amazing!

Other than these few points the game is very very good and very enjoyable.