Certain video games that involve these combinatorially randomized item drops, like Fallout 76 and Borderlands 3, have really, exponentially rare drops referred to colloquially as "godrolls". Hadn't encountered that term until recently, but I'm sure it has been in use for a while.
For those who are unacquainted with these games in particular, they are essentially sci-fi gun porn, but often in very light-hearted and cartoonish ways, unlike the more realistic Call of Duty which I personally have never taken to. (edit: and with staggering world-building here and there, but the guns are a major draw. The actual stories in the games mentioned are mediocre in my opinion.)
Anyway these games have pretty much been built around the rarity of weaponry. Borderlands 3 probably has on the order of millions of unique weapons, if not an order of magnitude higher.
I have been into these games since I was a teenager, but I can also see how, from an outside perspective, they can make fascinating case studies.
Interesting, trying to abstract the lessons of value and labor motivation from these more or less hermetically contained economies (save for weapon duplication exploits and secondary black markets).
I was explaining this recently to my dad, and mentioned how the value is effectively frozen when the PS4 is turned off, but if there are ways to systematically transduce such value into more real-world expressions, there would be some lucrative opportunities to be exploited in doing so.
These economies are reinforced to some extent by communities forming around these games, socially establishing fashions and best practices, via reddit and the like.
But the primary takeaway for non-gamers is this: these games are what peak gamification looks like, so if you are curious as to how business may be gamified further, perhaps take a look.