logoETHGlobal Tokyo




Mantle is a high-performance Ethereum layer-2 network built with modular architecture delivering low fees and high security. Builders can leverage Mantle’s unique design to build dApps with exceptional UX, all while relying on Ethereum’s unrivaled security.


Build on Mantle ($5,000 in bounties paid out in $BIT)

This bounty seeks to reward innovative projects that leverage the Mantle testnet to improve the web3 ecosystem. We will consider any project deployed on Mantle, but here are some ideas:

NFT/Gaming - Build an NFT or web3 gaming-related project that uses novel NFT use cases, improves wallet interactions for games, or addresses one of the challenges outlined in the Game7 report.

Developer Infrastructure or Tooling - Create an SDK, API, or tool to facilitate collaboration among DAOs and web3 teams, such as multisig tooling, transaction tracing, etc..

DeFi - Create an implementation on Mantle that enhances the DeFi ecosystem, such as core protocol tools, ecosystem tools, use cases for NFTs and the Metaverse, DAOs, DeFi, and dApps.

Prizes: 1st Prize: $2,500 in $BIT 2nd Prize: $1,500 in $BIT 3rd Prize: $1,000 in $BIT


  • All submissions must be deployed on Mantle testnet
  • A video demo and GitHub repo must be submitted
  • Link to your contract on the Mantle Explorer

Judging Criteria: Overall quality of the submission, including innovation, impact on the web3 ecosystem, and technical feasibility.

Getting Started