Before starting Roblox, he built a computer simulation for physics students called Interactive Physics that became his first software business. The 58-year-old Baszucki grew up in Minnesota and studied computer science and engineering at Stanford University. “The one we’re in the middle of now is people of all ages playing on the platform and a lot of growth in the 13-and-over segment.” “We’re really optimistic about all these growth opportunities,” he says. Up next, Baszucki tells Fortune just after the first trade was completed, is going for older kids and adults. The company already has over 32 million users a day, though most are 13 years old and younger. With the shares opening for trading at $64.50, his stake is worth almost $4.3 billion on paper. 15, according to the company’s regulatory filings. Video game service Roblox listed its shares publicly on Wednesday in a highly anticipated market debut that made founder and CEO Dave Baszucki a billionaire several times over.īaszucki, who started the company in 2004, owned 66 million shares and controlled 70% of the voting power of all Roblox shareholders, as of Jan.

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