If I had a nickel for every time I played a game in this jam, where it was essential to know how to open a combination lock, I would have 2 nickels, which isn't a lot, but it is weird that it happened twice...
Viewing post in Lock Under the Clock jam comments
It was a puzzle in this puzzle-room game. It was, if I remember correctly, the last puzzle.
https://itch.io/jam/brackeys-11/rate/2535041
The whole game wasn't revolved around opening locks, but it was essential to beat the game.