ARcade

Web3 CTF Challenges

Test your skills with real-world security challenges and earn rewards by finding vulnerabilities in Web3 protocols.

Showing 5 active challenges
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$50,000
Max Reward
HardSmart ContractDecentralized File Storage

Decentralized File Storage CTF

Find vulnerabilities in a decentralized finance protocol's smart contracts and frontend implementation. Arweave is a decentralized, permanent storage protocol built on a novel blockchain-like structure called the blockweave. It allows data to be stored forever with a single, upfront payment — making it ideal for archiving, dApps, and censorship-resistant publishing.

14 days
128 participants
ArweaveArweave
Smart Contract
Solidity
ERC-20
AMM
$30,000
Max Reward
MediumSmart ContractNFT

NFT Marketplace Security Challenge

Identify security vulnerabilities in a new NFT marketplace platform built on Solana.

21 days
95 participants
SolanaSolana
NFT
Rust
SPL
Marketplace
$100,000
Max Reward
CriticalSmart ContractBridge

Cross-Chain Bridge Security Audit

Find vulnerabilities in a cross-chain bridge connecting multiple blockchains.

30 days
76 participants
Multi-chainMulti-chain
Bridge
Multi-chain
Solidity
Validators
$40,000
Max Reward
MediumSmart ContractGovernance

DAO Governance Security Challenge

Identify vulnerabilities in a decentralized autonomous organization's governance system.

18 days
62 participants
EthereumEthereum
DAO
Governance
Solidity
Voting
$75,000
Max Reward
HardSmart ContractDeFi

Lending Protocol Security Audit

Find vulnerabilities in a decentralized lending protocol that allows users to borrow and lend assets.

25 days
104 participants
EthereumEthereum
Lending
DeFi
Solidity
Interest Rates