I was so excited... and all my expectations were crushed.
I disagree with the idea of challenges because the only thing stopping you from completely crushing the challenges is the sketchy interface and the limited God powers.
I have heard on forums that the last level is a sandbox mode in itself. I skipped through the levels to get there, but honestly, I was not expecting much by the end of the game. That is not really a sandbox mode, it's very limiting and very basic. I want a full sandbox mode because that is why I bought the game. I couldn't care less about the excuse of a story, the history of imaginary cultures and the fauna and flora of a created planet. I have books for that, thank you.
Now, I waited for the past year for this game, so it would be unfair to judge it up to my expectations. It was an entertaining four hours, well worth my 15$. I cannot wait for expansions with multiplayer and a full sandbox mode. Please invest more in the kind of game, as it represents the dream of mankind and the dream of every child.
Cheers Ubisoft!