This game was created as an experiment. It's a very impressive experiment that actually succeeded. The game is set in the 31st century, in a world where cyberpunk and prehistoric elements coexist. It's a very unique world and its people. The most interesting part of the game is that you get to control an AI named GAIA, that can help you in battles and other stuff. The whole story is told through text and some cutscenes.

The story

Aloy is an outcast. She was forced to leave her tribe because of her father's hatred and violence. She has to restore her position in the tribe and save the world by stopping the Eclipse, a cult that wants to rule the world.