Coding Games and Programming Challenges to Code Better

CodinGame is a challenge-based training platform for programmers where you can improve your coding s...

Codewars - Achieve mastery through coding practice and developer mentorship

A coding practice website for all programming levels – Join a community of over 3 million developers...

#1 Solidity Tutorial & Ethereum Blockchain Programming Course | CryptoZombies

CryptoZombies is The Most Popular, Interactive Solidity Tutorial That Will Help You Learn Blockchain...

Untrusted - a user javascript adventure game

Knight Lab's SQL Murder Mystery

Use SQL queries to solve the murder mystery. Suitable for beginners or experienced SQL sleuths.