# CORE GAMING HACKATHON EXPERIENCE ### BUIDL Our team participated in the Core Gaming Hackathon, where we formed two separate teams working on different projects: LuckyMe and TheOnePercent. I was part of TheOnePercent, a game based on a minority mechanism that rewards participants who choose not to follow the crowd. **TheOnePercent**: https://theonepercent.vercel.app/ **LuckyMe**: https://luckyme-game1.vercel.app/ ### CHALLENGES One major challenge we faced was securely hiding each user's answers using randomness. Generating true randomness on-chain is difficult, so we leveraged Chainlink VRF to generate randomness securely and verifiably off-chain. Frontend integration also presented issues, particularly with event listeners not triggering as expected. However, through persistence and debugging, we resolved these challenges and successfully submitted our project before the deadline. ## BUILDING ON CORE BLOCKCHAIN Building on Core was a great experience—it's one of the best blockchains I've worked with. Core is EVM-compatible and leverages Bitcoin for security, making it both powerful and efficient. The development process was smooth, thanks to Core's available testnet tokens (TCORE) and blockchain explorer for deployed contracts. TheOnePercent was built using Foundry. LuckyMe was developed with Hardhat. While Core’s documentation provided guidance for Hardhat, it lacked resources for Foundry. Fortunately, I documented the process—check it out here: My Guide: https://hackmd.io/YdnVYB3_RNaWFdxDtv1yyw ### CHECK OUT THE PROJECT **GitHub**: [Repo](https://github.com/viktrified/CoinToss) Demo Video: [Watch Here](https://www.loom.com/share/e26754cf31d64aaca7ff7ceabd411bd7) Pitch Deck: [View Here](https://docs.google.com/presentation/d/1OPzRYOiFz6UGImva1qmiFbs8aGZGrnuZWR7LY--6FcY/edit#slide=id.p)