David Baszucki is the co-founder and CEO of Roblox, the platform where tens of millions of people gather daily to play, build, and socialize inside user-generated virtual worlds.

Baszucki grew up in Eden Prairie, Minnesota, studied electrical engineering at Stanford, and in the late 1980s co-founded Knowledge Revolution with his brother Greg. There they built Interactive Physics, a 2D simulation that let students run physics experiments on screen — it sold millions of copies. MSC Software acquired the company in December 1998 for $20 million. After a few years running a division there, Baszucki left, hosted a libertarian talk radio show, drove across the West in a motorhome with his family, and eventually returned to a one-room office in Menlo Park with his old Knowledge Revolution engineer Erik Cassel. They began writing simulation code. The prototype was called DynaBlocks. It became Roblox.

The platform launched in 2006, targeting kids and teenagers not just with games but with a canvas for building them. Growth was slow for years — then the pandemic made Roblox essential. In March 2021, the company listed directly on the New York Stock Exchange at a valuation of more than $41 billion. Cassel, who had died of cancer in 2013, did not live to see it. Baszucki has always framed Roblox as something bigger than a gaming platform — a place for human co-experience where creators, many of them teenagers, build the content and share in the economics. He has pledged all additional CEO compensation to philanthropy, directing tens of millions toward bipolar disorder research — a cause tied to his own family's experience with the illness.