DoctorRofatnik, known to fans as “Doc,” looked almost mayoral in a tall white hat, a red tie and an American flag pin. A smirk was permanently plastered on his face as he roamed his domain on Roblox, ...

Roblox CEO David Baszucki, 53, cofounded the San Mateo, CA-based computer gaming platform in 2006. With 12 million users last month, it lets people create their own virtual immersive experiences, like ...