neoman10 said:
Hire god to make it

sorry im just too tired to think
Ressurect Charles Darwin and have him design it HAH!
But seriously, the stages really needed more padding (for lack of a better word) each stage should be enjoyable on its own, I should be able to play the tribal stage and enjoy it as if it were a game of its own.
Tidal Pool: Probably not much more you could do here, I think the transition from micro-organism to land critter was much too quick though, there need to be more parts, including the ability to gradually add and expand limbs as opposed to them suddenly popping out of nowherewhen your tidal pool phase is over.
Creature: The ability to be an aquatic based creature and a flying creature needs to be included, and potentially even a burrowing creature, but that might be a tad complex. You should be able to choose and create the nest for your creature, so you can live in a cave or in trees (trees need to be more varied and larger to allow for tree climbing/dwelling creatures).
Your creature's population should be larger and you should be able to specify the difference between male/female creatures. Then when it comes to mating you should have the ability to challenge fellow creatures for females and even for dominance of your species' herd.
Tribal: There should be more to keeping your tribe happy than just food. The same goes with resources for making buildings (which shouldnt be limited as they are). Basically it should be like the most primitive stage of age of empires. Also, inter-breeding between tribes should be a potential (represented by allying with a tribeand choosing to co-exist) this would then allow you to choose some characteristics of the other tribe to add to your tribe's characteristics if you wished. The transition from tribe to civilisation should also be more gradual.
Civilisation: Again there needs to be more detail, more types of buildings, instead of just putting an entertainment building here to make this city happy. you shouldn't be limited to just being religious/warlike/economic, granted a warlike state isnt going to be very successful in making trade agreements with another civilisation but you could still pick and choose how to deal with each nation differently (Iam aware that when you control a city you have the ability to make that cities chosen units, but I think it should affect all your cities).
Space: The most complete stage really, they just need to add more features and options, ways to interact with other creatures/civilisations. For example I would thoroughly being able to walk on the surface of a planet FPS style, with all sorts of advanced technologies, so I could convince a tribe that I was a god, and then watch as their civilisation advances worshipping me (statues and temples devoted to me, as well as offerings, possibly in the form of spice and/or artifacts that they find).
Also, battles are too limited, for starters you have a limit (and a somewhat small one) on the number of space craft that you can fly with. I say we need to be able to create a fleet of our own ships if we so choose, including large transports for merchant purposes or to drop ground forces on another planet in order to invade.
Anyway, thats just my point of view.