HyperArena

Videos

Tech Stack

Solidity

Unity

Web3

Ethers

Description

HyperArena is a blockchain-powered car soccer game that brings competitive esports to Web3 with stake-to-earn tournaments on Mantle Network.

Links

Windows: Play Now
Android: Play Now
Demo Video: YouTube
Smart Contracts:Factory Contract

What We Built

A fully functional multiplayer game where players:

Compete in fast-paced 1v1 car soccer matches
Stake ERC-20 tokens to enter blockchain-verified tournaments
Earn mETH rewards through Mantle's liquid staking integration
Play cross-platform on PC, Android, and iOS

Key Innovations

🚀 Liquid Staking Integration: Tournament entry fees are automatically staked in Mantle's staking protocol, earning mETH yield during gameplay. Winners receive bonus rewards from accumulated staking returns.

🎮 Decentralized Tournaments: Smart contracts handle everything - player registration, bracket generation, match orchestration, and prize distribution. No central authority needed.

⚡ Zero Server Infrastructure: Matches use Unity Relay for P2P connections. All tournament logic lives on-chain. Fully decentralized gaming experience.

🔐 Cheat-Resistant: Server-authoritative game state prevents manipulation, with results verified before blockchain recording.

Technology Stack

Blockchain: Mantle Network (L2), Solidity 0.8.20, Thirdweb SDK
Game Engine: Unity 2022.3 LTS with Netcode for GameObjects
Smart Contracts: TournamentFactory.sol, Tournament.sol
Infrastructure: Unity Gaming Services (Lobby, Relay, Cloud Save)
Platforms: PC, Android, iOS

How It Works

Players create tournaments by deploying smart contracts with entry fee
Other players join by staking tokens - contract auto-starts when full
Entry fees deposited into Mantle staking protocol to earn mETH
Single-elimination bracket automatically generated
Players join match lobbies via Unity Relay (P2P connections)
Car soccer matches played - score goals to win
Winners advance through bracket automatically
Finals winner declared on blockchain, prizes distributed with mETH rewards

Impact

For Players: Skill-based competition with real crypto rewards
For Mantle: Drives adoption of liquid staking through gaming
For Web3: Showcases blockchain gaming beyond simple NFT collections

Progress During Hackathon

Built complete end-to-end tournament system from scratch: ✅ Smart Contracts - Deployed Tournament and TournamentFactory contracts to Mantle - Integrated with Mantle's liquid staking protocol for yield generation - Implemented secure prize distribution with reentrancy protection ✅ Game Development - Built car soccer gameplay with physics-based mechanics - Implemented Unity Netcode for real-time multiplayer - Created mobile controls for cross-platform support ✅ Tournament System - Automatic single-elimination bracket generation - Match lobby creation via Unity Gaming Services - Blockchain sync for player verification and result recording ✅ Integration - Thirdweb wallet authentication - ERC-20 token payment flow with gasless permit integration - Cloud Save for tournament data persistence ✅ Testing - Full tournament flow verified (create → join → play → claim rewards) - Mobile builds tested on Android - All 10 critical tournament issues resolved Result: Production-ready game with fully functional Web3 tournament infrastructure.

Fundraising Status

Bootstrapped project built during the hackathon. Exploring grants and ecosystem support post-hackathon.