Founder Profile
Erik Cassel
Last reviewed: October 2026 · By Swet Parvadiya
Who is Erik Cassel?
Erik Cassel is a founder of Roblox Corporation, which was founded in 2004 with David Baszucki.
- Company founded
- Roblox Corporation
- Founded
- 2004
- Co-founders
- David Baszucki
Background
Software engineer who programmed the core physics simulation engine for Interactive Physics alongside David Baszucki.
Founding Story
Erik Cassel (1967-2013) graduated from Cornell University with a degree in physics. Following the sale of Knowledge Revolution, he co-founded Roblox with David Baszucki in 2004. As Vice President of Engineering, Cassel wrote the initial backend architecture and much of the fundamental physics code that allowed users to create and share interactive 3D experiences. He passed away from cancer in 2013.
Erik Stefan Cassel was born on December 16, 1967 and died on February 11, 2013. He served as Roblox's chief scientist and worked on the product from its earliest prototypes until his death. Erik Cassel was born in 1967.