We are building the next generation of massively multiplayer online (MMO) games by empowering players with the extensive freedom to build, extend, and influence the game worlds they inhabit. Our approach is centered around World Engine, our state-of-the-art onchain game server framework. World Engine leverages a novel sharded rollup blockchain architecture, which allows games to use smart contracts for user-generated content (UGC) while scaling to tens of thousands of concurrent users without compromising performance. To date, World Engine is the most performant blockchain designed from the ground up for games and has been used in production for games like Dark Frontier, processing 700K+ player transactions within a week.