Carnivals have always been a classic icon of a place to spend time with friends and family, and it's usually represented with a Ferris wheel or a cotton candy machine. Carnival games have been transferred onto the digital screen also, including ring toss and whack-a-mole. While the carnival has always been associated with the word "fun", the letter "K" in this game seems to make this word turn out to be a whole different meaning.
If two words can describe the gameplay, it's pretty much Lemonade Tycoon. You build your structures, earn money, attract customers, and all those great things associated with running a business. If people aren't interested in your carnival anymore, you must move on into other areas and cities to lure in more and more people. While in description it sounds fun, Karnival seems to have some minor flaws that keep it from becoming major.