B3 is a blockchain project founded by former Coinbase/Base team members and early Ethereum contributors. It aims to create on-chain economic and entertainment experiences through a Layer 3 ecosystem architecture on Base. The project is built around three engines: B3OS (a no-code on-chain operating system supporting application, automation, and workflow building), Labs (incubating and developing revenue-generating products), and Holdings (strategic investments in complementary businesses). All revenue ultimately flows back to the $B3 token, forming a closed-loop value growth.

B3 focuses on games and consumer applications, providing a high-performance, low-cost dedicated block space. It supports modular AppChain, multi-chain interoperability, embedded account abstraction, and cross-game liquidity sharing. It has incubated multiple games and tools, helping developers quickly build scalable on-chain experiences.