Post Apocalypse or Caveman?

So I was thinking, this game could be a post apocalypse game atm but could easily be make a pre-civilization game. Just remove the zombies and change from radiated towns to more natural things like bear dens, animal nest, and abandoned villages. Oh and to get it even better you could add, here it comes, DINOSAURS! If this game had dinosaurs I think I would never stop playing it.

What do you guys think? What is your opinion on the game and what it could be? How would you change it?

TL;DR less modern, more dinosaur. Your ideas?

Cavemen are from another era then dinosaurs Mr Pilkington

im sorry, I will edit a TL:DR version that is abit more correct.