Twenty1
A Telegram mini-app for Blackjack, with on chain game play and encrypted data.
Screenshots






Problem Statement
Twenty1 is a Telegram mini app where you can play the classic game of Blackjack with on-chain gameplay and encrypted data. Players can stake money and play against the dealer, earning double their stake when they win. The app ensures fair play through transparent blockchain technology, providing a secure and trustworthy gaming experience.
Solution
We built the frontend using the React as well as Node.js framework and styled it with Tailwind CSS. The smart contracts were developed, tested, and deployed using Foundry and Solidity, ensuring a secure and reliable blockchain setup.Our project is deployed on both Flow and Oasis, and it supports the use of the Dynamic wallet for seamless user interactions.
Hackathon
ETHGlobal Bangkok
2024
Prizes
- 🏆
Blockscout Explorer Big Pool Prize
Blockscout
- 🏆
Best use of Sapphire and/or ROFL1st place
Oasis Protocol
Contributors
- megabyte0x
30 contributions
- 0xPrakharG
19 contributions
- Lucifer0x17
13 contributions
- 0xLPircy
12 contributions
- DivyanshGoel20
3 contributions