The Roblox Engine

In this episode of Tech Talks, Roblox founder & CEO David Baszucki sits down with Oren Jacob and Vincent Petrella to explore our latest innovations in avatar movement. Building a fully extensible system that enables fluid, physically-based motion for characters across all shapes, sizes, and proportions is one of our most complex engineering challenges yet, requiring a full evolution of our avatar movement stack. We break down the systems behind that effort and discuss how new animation tools on Roblox are laying the foundation for more expressive avatars and more ambitious gameplay experiences.

In this episode of Tech Talks, Roblox CEO David Baszucki sits down with Nick Tornow, Lynn Gong, and Peter Yang to discuss the future of agentic game creation and how Roblox is building the next generation of tools to enable creators to build more ambitious games faster. Discover how Roblox Assistant is evolving beyond a prompt tool into an AI-native system that can plan, execute, and verify complex game development tasks alongside creators. 

In this episode of Tech Talks, Roblox Founder & CEO Dave Baszucki is joined by Kiran Bhat and Alberto Hojel for a deep dive into new techniques for creation powered by generative AI. We explore how Roblox's 3D-native foundation model builds on powerful ideas from text and image modalities, allowing creators to build functional 4D objects and worlds from prompts. We also discuss our vision for real-time video world models for gaming, leveraging our 3D simulation backbone. If you've ever wondered how AI scales to millions of players in a shared, physics-based environment, this deep dive is for you.

In this episode of Tech Talks, Roblox Founder & CEO Dave Baszucki is joined by Rajiv Bhatia (Head of Product, User & Discovery), Naren Koneru (Engineering Lead, Safety), and Eliza Jacobs (Head of Safety Policy) for a deep dive into one of the most important challenges facing online platforms today: enabling authentic communication while keeping users safe.The conversation explores Roblox’s new age estimation and age check technology, including how facial age estimation works, why it’s being introduced now, and how it fits into Roblox’s broader, layered approach to safety and civility. The group discusses the engineering breakthroughs that made this possible, the privacy-preserving design behind the system, and how policy, product, and engineering come together to create developmentally appropriate experiences for users of all ages.

In this episode of Tech Talks, founder and CEO David Baszucki sits down with Roblox product and engineering leaders Varun Mani, Sergey Makeev, and Tsvetan Tsvetanov to break down how SLIM (a hierarchical, dynamic level-of-detail system) and Cloud Transcoding are redefining what’s possible on Roblox.

 In this episode of Tech Talks, founder and CEO David Baszucki sits down with Nick Tornow and Roblox creator Jandel to discuss the future of creation on Roblox. The conversation covers how Grow a Garden became one of the most popular experiences on the platform, the engineering breakthroughs that make massive scale and live events possible, and how AI, real-time collaboration, and safety systems are empowering creators today and shaping what’s ahead.

In this episode of Roblox Tech Talks, founder and CEO David Baszucki sits down with Chief Safety Officer Matt Kaufman and Senior Director of Product Policy Eliza Jacobs to discuss how Roblox is advancing its commitment to safety, civility, and freedom on the platform.The conversation covers:Our latest safety releases and how they help protect our communityUpdates to our approach on vigilantism A preview of upcoming safety features and policies in development

In this episode of Tech Talks, Roblox founder and CEO David Baszucki speaks with Matt Kaufman and Eliza Jacobs about how Roblox is advancing its commitment to safety, civility, and freedom at scale. They discuss new features like Trusted Connections and age verification, how AI and human moderation work together to protect the community, and the importance of building systems that adapt to cultural norms and parental expectations worldwide. The conversation also covers  how Roblox empowers developers and parents with tools to create safe, age-appropriate experiences and how these innovations are setting a new standard for online platforms.

In this episode of Tech Talks, CEO David Baszucki is joined by George ElKoura and Taylor Russ for an in depth look into the Roblox engine. They explore what it takes to simulate reality at scale, from building a generalized simulation system to delivering high-performance experiences across every device. They discuss breakthroughs in memory management, parallel computing, dynamic asset streaming, server authority for competitive play, and how Roblox is pushing toward a future of instant join, photorealism, and limitless scale.

In this episode of Tech Talks, CEO David Baszucki is joined by Chen Zheng and Michelle Gong to explore the evolving world of search, recommendations, and personalization on Roblox. They discuss the complexities of discovery across different platforms, how Roblox is optimizing for long-term user and creator satisfaction, and the role of transparency, cold start challenges, and AI in shaping the future of engagement.