Roblox is an immersive platform focused on bringing people together to create, educate, and share with one another in meaningful ways. Our company mission is to connect one billion people with optimism and civility. As such, safety and civility have been the foundation of Roblox from the start, and become even more important as we grow and evolve.  Although safety is broadly understood, civility is often not. Civility is built on a foundation of safety. We have the opportunity to build one of the most civil immersive communities in the world. One that is Fair, Respectful, and provides a d ..read more

The Hunt: First Edition attracted 34 million users who spent 128 million hours completing 212 million quests.  100 creator teams built new quests showcasing a diverse range of experiences. Our users and creators provided valuable insights that will make future community-wide events even better. For two great weeks last month, 34 million Roblox users tackled brand-new quests across 100 of our creator experiences as part of The Hunt: First Edition, our first community-wide event in three years. It was a success based on many metrics, including the 212 million quests our users completed an ..read more

Roblox has always been designed to protect our youngest users; we are now adapting to a growing audience of older users. With text, voice, visuals, 3D models, and code, Roblox is in a unique position to succeed with multimodal AI solutions. We improve safety across the industry wherever we can, via open source, collaboration with partners, or support for legislation. Safety and civility have been foundational to Roblox since its inception nearly two decades ago. On day one, we committed to building safety features, tools, and moderation capabilities into the design of our products. Before we ..read more

People come to Roblox to imagine, create, and share experiences with each other in immersive, user-generated 3D worlds. As a global platform, we believe in building a safe, civil, and diverse community that inspires and fosters creativity and positive relationships around the world. Protecting the safety and privacy of children who come to Roblox to have fun and learn is our top priority. Because of this, we support legislation that we believe will help create a safer internet for children, including the recent California Senate Bill 933 (SB 933), which prohibits individuals from possessing an ..read more

Inside the Tech is a blog series that accompanies our Tech Talks Podcast. In episode 20 of the podcast, The Evolution of Roblox Avatars, Roblox CEO David Baszucki spoke with Senior Director of Engineering Kiran Bhat, Senior Director of Product Mahesh Ramasubramanian, and Principal Product Manager Effie Goenawan, about the future of immersive communication through avatars and the technical challenges we’re solving to power it. In this edition of Inside the Tech, we talked with Senior Engineering Manager Andrew Portner to learn more about one of those technical challenges, safety in immersive vo ..read more

Inside the Tech is a blog series that accompanies our Tech Talks Podcast. In episode 20 of the podcast, Avatars & Self-Expression, Roblox CEO David Baszucki spoke with Senior Director of Engineering Kiran Bhat, Senior Director of Product Mahesh Ramasubramanian, and Principal Product Manager Effie Goenawan, about the future of immersive communication through avatars and the technical challenges we’re solving to enable it. In this edition of Inside the Tech, we talked with Engineering Manager Ian Sachs to learn more about one of those technical challenges—enabling facial expressions for our ..read more

This was a big year for Roblox. We made great progress toward our vision of reimagining the way people come together by building innovative technologies that enable richer forms of communication, creation, and immersion. During Q3* of this year, we saw 70.2 million daily active users on Roblox, which was up 20 percent from the same period last year, and users spent 16 billion hours coming together to connect, explore, learn, play, and create on our platform. As Roblox has grown, our responsibility to our community is as strong as ever, and I’m proud that we’re keeping safety at the forefront o ..read more

As Roblox has grown over the past 16+ years, so has the scale and complexity of the technical infrastructure that supports millions of immersive 3D co-experiences. The number of machines we support has more than tripled over the past two years, from approximately 36,000 as of June 30, 2021 to nearly 145,000 today. Supporting these always-on experiences for people all over the world requires more than 1,000 internal services. To help us control costs and network latency, we deploy and manage these machines as part of a custom-built and hybrid private cloud infrastructure that runs primarily on ..read more

Abstract Every day on Roblox, 65.5 million users engage with millions of experiences, totaling 14.0 billion hours quarterly. This interaction generates a petabyte-scale data lake, which is enriched for analytics and machine learning (ML) purposes. It’s resource-intensive to join fact and dimension tables in our data lake, so to optimize this and reduce data shuffling, we embraced Learned Bloom Filters [1]—smart data structures using ML. By predicting presence, these filters considerably trim join data, enhancing efficiency and reducing costs. Along the way, we also improved our model architect ..read more

Inside the Tech is a blog series that accompanies our Tech Talks Podcast. In episode 19 of the podcast, International, Roblox CEO David Baszucki spoke with Product Senior Director Zhen Fang about Roblox’s International strategy, and the technical challenges we’re solving to ensure a localized experience for tens of millions of people around the globe. In this edition of Inside the Tech, we talked with Engineering Manager Ravali Kandur to learn more about one of those technical challenges, multilingual and semantic search, and how the Growth team’s work is helping Roblox users across the globe ..read more