From Brian Eno et. al. - https://www.oblique-strategies.com/
Also, does anyone have a libre/free source for something more tech oriented? I can imagine the cards being something like "make data column oriented instead of row oriented" or "deduplicate data".
The best I've found is the "Little Deck of Game Design" [0], which seems pretty cool.
[0] https://www.whatgamesare.com/2011/10/the-little-deck-of-game...
no idea if it's still in the app store, somebody stole my watch.