Developer Relaunches flat.social, a 3D Spatial Meeting App Built as a Multiplayer Game

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A solo developer has launched a rebuilt version of flat.social, a browser-based spatial meeting platform designed for remote teams and online communities. The app functions like a multiplayer web game, featuring customisable 3D virtual spaces with interactive elements and activities such as surfing. Originally created during the pandemic, the new version was rebuilt during a personal break while the developer stayed at a remote location in Brazil. The project is bootstrapped and independently developed using Three.js, LiveKit, and the Rapier physics engine. A live demo is publicly available for users to explore the updated platform.

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