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Ethernaut
Each Ethernaut level requires hacking a smart contract in the Ethereum Virtual Machine through a Web3 and Solidity wargame.

About Ethernaut
The Ethernaut is a Web3 and Solidity based wargame played in the Ethereum Virtual Machine. Each level is a smart contract that needs to be hacked. The site is a website accessed on the web and the content is in English.
You can take part in levels where each level requires hacking a smart contract in the Ethereum Virtual Machine. The work involves Web3 and Solidity within the structure of a wargame. The focus connects to security and security tools, and the site is listed under Crypto and Blockchain, Portfolio and Security Tools.
It suits people who are interested in Web3, Solidity, smart contracts, and the Ethereum Virtual Machine. It is relevant for those looking at security topics through a level-based wargame format on the web.
Key features
- Web3 and Solidity wargame in Ethereum Virtual Machine
- Each level uses a smart contract to hack
- Accessed as a website on the web
- Content presented in English
- Focused practice with smart contracts in the EVM
- Level-based structure for step-by-step work
Ethernaut at a glance
- Website
- ethernaut.openzeppelin.com
- Type
- Website
- Pricing
- Not confirmed. Check the site
- Platforms
- Web
- Open source
- Not stated
- Language
- English
- Last checked
- Oct 5, 2026 · Online when checked
- Listed
- Oct 5, 2026
Ethernaut alternatives
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Sigma Prime audits smart contracts, zero-knowledge systems, blockchain infrastructure, and off-chain code, and publishes security research.
Immunefi connects crypto projects with security researchers through smart contract and crypto bug bounty programs.
Hexens audits blockchain systems and offers continuous threat exposure monitoring, alongside research on smart contract platform vulnerabilities.
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