Also, a 13-year-old home-based developer scraped enough cash so he can fund his family's trip to the annual Roblox convention. In 2015, one 17-year-old high-school hobbyist developer pocketed more than $100,000 over two years from his games. According to the same report, the most popular Roblox games like 'I work in A Pizza Place' made its developers six-digit incomes. Did you know that even semi-professional game developers can enjoy a monthly income of $50,000? Business Insider reported that Roblox's most popular developers earned 'a solid $50,000 per month' in 2017.