CryptoCities

CryptoCities started like one of the many crypto collectable asset games on the Ethereum blockchain. It's different in that it's one of the most steadily growing community with strong and constant development by the founders.

The developers recently added Gold and a Capture/Battle system to supplement the existing system of owning cities/territories. Let's face it; simply owning cities/territories doesn't mean much even if it's a tradeable asset on the Ethereum blockchain. But CryptoCities is slowly developing into a platform with a strong strategy game elemtn.

Also, future release of an API will allow for third-party game development that makes use of the existing assets as well, thus making any owned asset more valuable!