Codingame is a website where you: - write a small part of game - in the language you prefer - let the website compile it & run it against several pre-defined testcases - see the result graphically Lots of challenges are available, from beginner to experienced level. There are also sponsored challenges by eg. Nintendo An excellent pastime in between serious stuff https://www.codingame.com/servlet/urlinvite?u=1011159 (the URL is an invite from my account)
It's just a pastime, nothing more, nothing less. Something that can be completed during a short break of 10-30 minutes. I would compare it to a writer doing crosswords in between writing two chapters of a book...
Yes, you will learn from it, in the sense that you will try to solve problems that become gradually more difficult. It's not a tutorial that explains step by step what to do however. It's focused on algorithms, not eg. graphics programming, but you will see your result in game-form. Just give it a try & solve the game "Onboarding", then "Power of Thor", and so on...