Homo Ludens: A Study of the Play-Element in Culture: Huizinga, Johan: 9781621389996: Amazon.com: Books
Here's an adorable factory game about machine learning and cats | PC Gamer
Ludens clarification and new OP build : r/TeamfightTactics
Learning Factory
April 2020 – Librarian of Things
it recommends ludens for kat now : r/KatarinaMains
Kotobukiya Kojima Productions Ludens Figure Model Kit - Walmart.com
Hard carried a game using the 'mathematically correct' build. Seems like there might be some use for it after all (ludens+ingenious hunter+cosmic insight, with full instant damage items rather than dot) :