There's three! YouTubers Life, TubeTycoon and Video Blogger Story. To me they all look a bit ehhhh though. I don't really like the Simsesque style of YouTubers Life, it's all a bit twee for me.
A lot of teens and young people have dreams of making it big on YouTube, like maybe in the past they would've had dreams of being a pop star. I can see why the game has a market. YouTube is big business now and it's only expanding. You can hate it, but this is how a generation consumes its media.