Code.org is a great place where you can code games with code blocks or make your own scripts.

https://code.org/

The hour of code gives you a hour to do some tasks, and if you complete it in 1 hour you can get a certificate. This year the  hour of code themes are Minecraft , Star Wars and you can also do the Frozen theme from last year if you are a fan of  Frozen.

Hope you have a fun time trying out code.org!