pepasur

Prepasur 🐸

An on-chain Mafia game powered by U2U, ENS, and Filecoin

Prepasur is a multiplayer Mafia-style social deduction game reimagined for Web3.
Players take on mythological roles — Asur (Mafia), Dev (Doctor), Manav (Villager), and Rishi (Detective) — and compete through staking, commit-reveal mechanics, and sabotage.

Each player gets an ENS subname (e.g., alice.prepasur.eth) that links their Ethereum and U2U addresses and stores profile metadata. Pixel-art avatars, NFTs, and other assets are stored on Filecoin using the Synapse SDK, ensuring permanence and verifiability. Game logic, staking, and payouts run on the U2U Mainnet, chosen for its scalability, security, and ultra-low fees.

🚀 Features

• On-chain Mafia Gameplay: fair play with staking + commit-reveal actions

• ENS Subnames: automatic identity like player.prepasur.eth for every user

• NFT Marketplace: trade in-game avatars and collectibles on U2U

• Filecoin Storage: assets and metadata stored permanently via Synapse SDK

• Cross-chain UX: U2U contracts + ENS identity + Filecoin permanence

🛠️ Tech Stack

• Blockchain: U2U Mainnet

• Identity: ENS Subnames (prepasur.eth)

• Storage: Filecoin Synapse SDK

• Smart Contracts: Solidity + Hardhat

• Backend: Node.js + Express

• Frontend: Next.js with wagmi/viem for ENS + U2U SDK

• Game Logic: Commit-reveal cryptography

📜 Contracts

• PepAsur.sol → core game contract (roles, staking, commit-reveal)

• U2UToken.sol → in-game ERC20-style token

• SimpleU2UFaucet.sol → faucet for testnet tokens

• Marketplace.sol → NFT trading contract (in progress)

Deployed on U2U Testnet

• PepAsurGame → 0x1fbA70E7A768448EC1Bf34DC53558b47De7b872c

• U2UToken → 0xabcd5678...

• Faucet → 0x9876efgh...

You can set your environment variable as:

U2U_PEPASUR_CONTRACT_ADDRESS=0x1fbA70E7A768448EC1Bf34DC53558b47De7b872c

🔗 ENS Integration

• Parent domain: prepasur.eth (Sepolia testnet)

• Subnames: auto-assigned when users join (e.g., rishi.prepasur.eth)

• ENS Text Records: store player metadata (avatar, role, etc.)

🗄️ Filecoin Integration

• Assets stored with Synapse SDK on Filecoin

• Example CID: ipfs://bafy... → points to avatar & NFT metadata

• Guarantees permanence, integrity, and tamper resistance

🎮 Demo

• Live app: prepasur.vercel.app

• Video demo: YouTube / Loom link

• Screenshots: located in /demo/

⚡ Quickstart

Prerequisites

• Node.js v18+

• U2U wallet (connected to U2U Mainnet)

• ENS testnet domain (prepasur.eth)

Install & Run

git clone https://github.com/<your-org>/Pepasur-game.git
cd prepasur-game

# Install dependencies
npm install

# Compile contracts
npx hardhat compile

# Run backend
node server.js

# Deploy contracts to U2U Mainnet
npx hardhat run scripts/deploy.js --network u2u

🧩 Hackathon Progress

Prepasur was born during a hackathon out of late-night brainstorming, endless testing, and a shared obsession with building something truly on-chain.

We started with a simple idea: what if Mafia could live on the blockchain? From that spark, we merged U2U smart contracts, ENS identities, and Filecoin permanence to craft a fully decentralized social deduction experience.

Our first milestone was deploying the PepAsur.sol contract on U2U Testnet, enabling commit-reveal gameplay and staking. Then came ENS subnames, giving every player a unique identity like player.prepasur.eth. By mid-hackathon, our Filecoin integration brought avatars and NFTs to life, pixel by pixel, CID by CID.

From technical sprints to meme-filled marketing nights, we built Prepasur as more than a game — it’s a Web3 experiment in identity, trust, and deception.

Follow our journey on X @0xPepasur 🐸