GameZebo: Surely no genre has weathered the ups and downs of Facebook gaming quite like the city building strategy hybrid. Just when we as players think it's dead or that we've seen every possible variation of the template we could possibly see – boom – it returns to mock us for our lack of faith. Its resilience likely lies in the fact that these games are just so fun when all the elements work. Take Kingdom Knights. I jumped into this cartoony strategy game with apathy, but before I knew it, an hour had passed and I was still eager to see where it'd take me.