This game NEEDED to happen. Just the sheer God Smackedness of being able to reenact a part in our eveloution with its triumphs, failures, and series of extinctions is incredibly deep. You feel for YOUR characters in a way that only God itself could've felt watching and waiting. The lack of instruction is part of its genious design. You feel as if YOU are making connections between objects and their usefulness in your survival. Believe me, sometimes it will be JUST you. It leaves room for incredible sequels. I can't say enough good about this game, my suggestion is that you take your time. Explore and experiment with everything. Smart game for smart people. Period.