Cheers!
I have been trying to find a way of bringing that distribution into a game for a while, and thought about ideas like an enemy dropping an item with no mean drop rate, or a weapon with no mean chance to hit. I don't think those quite work however because the random number you draw can't be contained to the interval [0, 1], which is how you would usually do those things.
I realised it might only really work as a kind of money or exp, and thought an idle game would be the place to explore it in practise.
I only realised later how the player's wealth in yuan is an example of something called a Levy Flight: https://en.wikipedia.org/wiki/L%C3%A9vy_flight