Introducing Yahtzee’s Dev Diary
www.youtube.com
Yahtzee’s Dev Diary is a brand new limited series from the creator of Zero Punctuation! Every month for a whole year, Yahtzee will create a video game and do...

Four years ago (...jesus) Yahtzee decided to challenge himself to make 12 games in as many months. The videos don't run too long, are nicely edited/paced, and you get to see how he thinks about game design both in principle and in practice.

I'd highly recommend the series to anyone who's thinking about game design, whether that's as a hobbyist or a spectator. I've linked someone else's playlist because the official one is junk.