Quick Start Guide

Get up and running with B3 SDK in under 5 minutes

Ecosystem of Products

B3 is an portfolio of products designed to bring the next generation of apps, creativity, and commerce onchain.

Protocol Layer

The B3 protocol layer is the multi-blockchain backbone of the B3 ecosystem.

Ecosystem Layer

The B3 ecosystem layer is the open access developer infrastructure, tools, and services for building on B3.

Application Layer

We don’t just build tooling, B3 ships consumer apps that bring fun onchain & drive value back to the $B3 token.

B3 AppChains The Hyper-Scalable Superchain

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 infra pick your stack, settle anywhere—base, ethereum, solana, more.
  • multi-chain network launch on b3 mainnet or spin up your own gamechain with built-in support.
  • superfluid liquidity built-in primitives for instant transactions, rewards, and cross-app experiences.
B3 Banner
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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.
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Multi-chain Network

Appchains settle onto B3, with our protocol infrastructure abstracting away the complexity of dealing with multiple chains.

The Horizontally Scaling Appchain

Learn about B3’s unique appchain architecture, the most scalable way to build onchain.

Power to Developers

Bridge to B3 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:

What You Can Build

Scale Your Game

Unlock New Ways to Monetize

Why Choose B3?

Community & Resources

Discover how easy it is to build on B3 Start with our Quick Start Guide and begin building the future of fun today.