Taken from wikipedia: Now, last week, Ai-chan met a friend who revealed that he was designing a 4x game called Cradle of Civilization. He said while he could program it himself, he was afraid he'd end up building a generic, boring, typical 4x that people would get bored of. So he wanted more input before he started designing it in earnest. The game is about you raising a bunch of cavemen from nomadic hunter-gatherers into becoming a major power in the ancient world. It's similar to Civilizations, except that you also have the city view where you can build up your village like a typical city-builder game. You're also not fighting against Nuclear Gandhi, but against saber tooth tigers, other cavemen and other primitive villages who think you're weak. It's also not turn based and unlikely to be a multiplayer. He described it as a city-builder in a 4x world. Ai-chan doesn't know how that would work, but hey, here's your chance to suggest what you want. You also get to choose which religion you want to support, suppress or ban, but he said this one is going to be very hard for his programming skill and will be implemented much later if he choose to implement it. He said it would be more likely he would include religion in the tech tree instead. Based on the above, what would you like in such a game?