With 28 billion logged hours played since 2008, and a recent mention in Fortune as one of the best workplaces in the San Francisco Bay area, there's no reason to think that the Roblox Corporation has any plans of slowing down. While they've not yet reached Grand Theft Auto levels of popularity , right now they're happily celebrating their 100 million active users, and if the current trend continues, it won't be long before that number doubles in size. It was only April of this year, after all, t...