ChainSafe is a leading blockchain research and development firm specializing in infrastructure solutions for web3. Alongside its contributions to major ecosystems such as Ethereum, Polkadot, Filecoin, Mina, and more. ChainSafe creates solutions for developers and teams across the web3 space utilizing our expertise in gaming, bridging, NFTs, and decentralized storage. As part of its mission to build innovative products for users and improved tooling for developers, ChainSafe embodies an open source and community-oriented ethos to advance the future of the internet.

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🏆 Prizes:

ChainSafe Gaming is offering $2000 USD for the top project submission.

💰Prize Description:

ChainSafe Gaming is a complete web3 gaming solutions provider that recently released a new version of our SDK, web3.unity, that supports developers in building-enabled games and NFT-backed game assets. Web3.unity works on any EVM-compatible blockchain, and allows reads/writes and simplified wallet login across browser, mobile, and desktop platforms.

Web3.unity recently added new drag-and-drop prefabs for minting and selling NFTs directly in-game. Developers can now embed a full ERC-721/1155 NFT marketplace UI in their game to sell assets to players or allow peer-to-peer trading. Additionally, players can be rewarded with mintable NFTs when they complete in-game actions.

The ChainSafe Gaming team wants to see what YOU can build with these new NFT features. This hackathon prize is for the best game or interactive experience built with web3.unity’s embeddable NFT marketplace


  • Your project must use the web3.unity in-game embeddable NFT marketplace prefab
  • The marketplace must include NFTs that you have created specifically for the game and players must be capable of buying those NFTs directly from within the game through the ChainSafe Gaming marketplace
  • Open source is preferred but not required. Code must be visible during judging
  • Your project description must mention how you used the web3.unity marketplace and where in the codebase this usage can be seen
  • Your project must have a live, deployed, public, and interactive demo that can be used by judges and other hackathon participants
  • Your project must include a video presentation of the game and technology behind it, explaining how you used the marketplace prefab in your project


This workshop is happening in-person
Sygma 🛠 An SDK for Interoperable Apps
Time: 05:00 PM -05 – Oct 7, 2022
Location: Workshop Room 2

Getting Started

🛠 Resources:

🌈For Inspiration:

  • Create a marketplace for cosmetic items players can purchase to alter their character’s appearance
  • Sell plots of land in a virtual city
  • Let collectors buy concept art that was used to design your game
  • Create a popup marketplace for buying in-game items or powerups when a player visits a merchant

🎨Judging Criteria:

  • Use of web3.unity Marketplace Prefab
  • Gameplay
  • Visual Impression
  • Creativity