A rundown of various action systems that give players interesting ways of deciding what to do on their turn (video):

https://www.youtube.com/watch?v=Uca3LzGMe1Q

A history of storytelling in games (video):

https://www.youtube.com/watch?v=BuDrFKs9Hxo

Sealed bid auctions: how they work, games that use them, what they’re like for players, and more (video):

https://www.youtube.com/watch?v=sxl4fudIs4U

How to design a worker placement game (video):

https://www.youtube.com/watch?v=MsJ7YI8bJ_Q

Auctions with constrained bidding: why it’s a tricky mechanic for game designers to get right (video):

https://www.youtube.com/watch?v=dCPSuX2jcF0

Punishing game mechanisms: the case for minus points, instant losses, and other mechanics that penalize players in some way (video):

https://www.youtube.com/watch?v=Lz5fEny3LeM