Alternatives to victory points: racing games, tug-of-war mechanics, sole survivor, and more (video):

https://www.youtube.com/watch?v=Z4YbSh5Fx_E

Basics of probability theory for game designers: dice, betting, balance, and more (video):

https://www.youtube.com/watch?v=vo3QHqwbtCY

This panel discussion featuring game designers and developers covers the difference between design and development, how they incorporate narrative into games, and where they draw inspirations from (video):

https://www.youtube.com/watch?v=-FaAwCn2eDM

Board game design basics: defining your goals, restrictions, the iterative design process, qualities of good games, taking feedback, and more (video):

https://www.youtube.com/watch?v=AAiCR1XVe68

Keeping players’ attention: how to design for pacing, meaningful choices, tension, and rewards (video):

https://www.youtube.com/watch?v=k_0QN4Wmehk

Game flow: how to ensure players feel engrossed while playing, what contributes to a good game flow, and what you can do as a designer to improve it (video):

https://www.youtube.com/watch?v=JqspauIq0ls