Mr Steal Yo Crypto
Work through smart contract security challenges inspired by real incidents
Mr Steal Yo Crypto is a wargame of standalone smart contract challenges. Each one presents a crypto system, such as a vault, an NFT sale, a bonding curve or a governance contract, and asks you to show it can be made to fail or lose funds, in a local test.
Free · No login · Terminal · Advanced
About Mr Steal Yo Crypto
It trains smart contract auditing using scenarios loosely based on real incidents. It suits Solidity developers and auditors who have finished easier sets such as Ethernaut.
You play locally from the terminal with a Solidity development setup. It is free and needs no account.
On Breakpoint since 25 Oct 2026.
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