played two rounds of an intense co-op card game called #Regicide
it's a lot of maths, it's so much fun and it makes you immediately want to play again
that being said, two rounds with my cold, fever and fuzzy mind wiped me out
and as the lovely person i was playing with noticed, we play in English but we always count / do maths in our mother tongues ^^
another great thing about it is that anyone can play it with a regular deck: https://www.regicidegame.com/how-to-play/