
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 gamified educational platform that creates lore-rich programming challenges for experienced Solidity, Huff, Cairo and Noir developers. Think of it as a skill-based RPG where developers can become familiar with specific stack components and a place where they can showcase their abilities. 

### Skills Upgrade

We have created a series of coding challenges called “quests” to engage smart contract developers, providing them with the knowledge to build safe and gas efficient applications. In addition to practical skills, we also provide theoretical knowledge about crypto history, technology and economics through building a library of articles that break down complex concepts of distributed systems & decentralized finance.


### Public Good

Node Guardians is a public good for developers and will always remain so. 
In addition to supporting the growth of cool ecosystems, we plan to make the platform sustainable by managing [infrastructure](https://infra.nodeguardians.io/) across various networks.

Rewarding non-contributing operators wastes funds, we prefer community-building and education.


Node Guardians is a gamified educational platform that creates lore-rich programming challenges for experienced Solidity, Cairo, Huff and Noir developers.

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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