
Capture the Ether is a game in which you hack Ethereum smart contracts to learn about security.

It's meant to be both fun and educational.

This game is brought to you by @smarx, who blogs about smart contract development at Program the Blockchain.

Capture the Ether is a game in which you hack Ethereum smart contracts to learn about security.

Capture the Ether


Cipher Shastra is a playground where anyone can enhance their Security Skills by solving and learning from CTF like challenges. 

The playground is open source and anyone can contribute challenges to it
Twitter: @ciphershastra

Cipher Shastra


Welcome to CryptoHack! These introductory challenges are designed to walk you through the process of solving challenges and submitting flags. Complete the challenges to earn your first gold trophy.

Learn about modern cryptography by solving a series of interactive puzzles and challenges.

CryptoHack


Learn to Code Blockchain DApps By Building Simple Games

CryptoZombies is an interactive school that teaches you all things technical about blockchains. Learn to make smart contracts in Solidity or Libra by making your own crypto-collectibles game.

#1 Solidity Tutorial & Ethereum Blockchain Programming Course

CryptoZombies


More and more DeFi projects on Ethereum are getting hacked. This is your chance to join the party.

Each challenge can be considered standalone. Depending on the challenge, you should either stop the system from working, steal as much funds as you can, or do some other unexpected things.

Put your black hat on, and break some DeFi projects on Ethereum!

Damn Vulnerable DeFi


DApp World is a blockchain upskilling platform where developers upskill themselves by enrolling in interactive courses, taking quizzes to test their knowledge and practicing solidity challenges with assessments.

DApp World is an ecosystem to learn, test, upskill and leverage blockchain skills.


DApp World is a blockchain upskilling platform where developers learn by doing!

DApp World


At PHDays security conference a new contest called EtherHack was held, to solve all tasks which featured smart contract vulnerabilities.

Etherhack


Node Guardians is a platform for builders, thinkers, and stakers. Our mission is to bolster innovative and promising crypto ecosystems, and contribute to the future of a decentralized internet. We do this through education and infrastructure.

### Education

Ecosystems need talented builders. There is a need to onboard and upgrade more developers into industry-standard builders across different protocols. We design a catalog of coding challenges that aim to engage smart contract developers of all levels, and equip them with knowledge on how to build safer, better, and smarter.

Beyond practical skills, we also aim to empower the space with theoretical knowledge in an unbiased manner, through growing a library of literature on crypto history, technology, and economics, written by us and the community.

### Infrastructure

Ecosystems need decentralized security. For proof-of-stake chains, this means more stakers and validators. We provide infrastructure for non-custodial staking that places an emphasis on availability and security. This enables users to stake their assets, act as validators in the ecosystem, and earn rewards.

On-chain governance is taken very seriously at Node Guardians. As validators, we aim to vote on proposals that push towards more decentralized & robust protocols, and proposals that are aligned with our community’s interests.  Expect full transparency on our governance choices through regular recaps.

a platform for builders, thinkers, and stakers. Our mission is to bolster innovative and promising crypto ecosystems, and contribute to the future of a decentralized internet.

Node Guardians


Speed Run Ethereum aims to provide a structured learning path for onboarding developers to Ethereum.

Ethereum Dev Speed Run with a framework for submitting challenges, get feedback from ethereum builders, and in the process unlocking new challenges and proof of completion.

Speedrun Ethereum


The Ethernaut is a Web3/Solidity based wargame inspired on overthewire.org, played in the Ethereum Virtual Machine. Each level is a smart contract that needs to be 'hacked'.

The game is 100% open source and all levels are contributions made by other players. Do you have an interesting idea? PRs are welcome at github.com/OpenZeppelin/ethernaut.

A Web3 based wargame played in the Ethereum Virtual Machine

The Ethernaut


This is an interactive tutorial website for learning Vyper while building games using smart contracts, similar to Cryptozombies.


VyperFun


Wriggly is a web3 learning platform to practice smart contract coding challenges and enhance your blockchain skills.

Wriggly wants to change the way blockchain talent is assessed and create a collaborative platform for developers to learn.

Wriggly is a web3 learning platform to practice smart contract coding challenges and enhance your blockchain skills.

Web3 Code Challenges

🏆 CryptoZombies

🏆 Node Guardians

🏆 Speedrun Ethereum

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