B3 is not just another chain, B3 connects fun experiences - games, apps, consumer projects - into a modular, scalable ecosystem that’s open, connected, and ready to grow.Created by a team of Base/Coinbase alumni and OG Ethereum contributors.
modular infrapick your stack, settle anywhere—base, ethereum, solana, more.
multi-chain networklaunch on b3 mainnet or spin up your own gamechain with built-in support.
superfluid liquiditybuilt-in primitives for instant transactions, rewards, and cross-app experiences.
1
Secured by Base
B3 operates as an L3 that settles on Base, providing dedicated blockspace specifically for gaming with
lightning-fast transactions and sub-cent fees.
2
Multi-chain Network
Appchains settle onto B3, with our protocol infrastructure abstracting away the complexity of dealing with multiple
chains.
Build with tools, sdk, docs, and real support that let you go from zero to live in record time. Explore the B3 SDK to immedaitely build exceptional onchain experiences:
B3 delivers lightning-fast transactions with sub-cent fees through dedicated blockspace for gaming, built as an L3
that settles on Base.
Settled on Base
Base is a secure, low-cost, builder-friendly L2 incubated by Coinbase. B3 leverages Base as a settlement layer,
contributing to the Base ecosystem while extending its capabilities.
Scalable
Launch web2-scale games with B3’s rollup engine that horizontally scales by sharding at the application layer,
orchestrating dedicated sidecars for computationally heavy operations.
Hyper-Operable
B3’s composable architecture enables seamless interoperability between appchains, assets, and tokens. Build true
cross-chain experiences.
Open Ecosystem
No walled gardens here. Anyone can deploy and build on B3, supported by most major blockchain platforms and
frameworks.