appleskin

I've heard good things about https://gravit.io/

But there are others: http://alternativeto.net/software/sketch/

I am not in a hiring position but Mr. Peter Norvig says that being good at programming competitions correlates negatively with being good on the job at Google.

http://www.catonmat.net/blog/programming-competitions-work-p...

Thank you. I appreciate that.

I created LyricSmith (http://lyricsmith.com/) for my mom. It does not make me a living ;)

This is loosely related but if I were you I would want to know about it. Casey Muratori is doing a series on game development in C. I find it educational and entertaining.

https://handmadehero.org/