https://replay.pragmaticplay.net/5kURlHmpO8 - 48x on Buffalo King Megaways played at 711 (Dutch website).
Seeing all these bonus buy max wins, I thought: let's just participate for the random giveaway :). Buffalo King Megaways is one of my go to slots: it is thrilling, can pay nice in the base game and has an unique bonus which I like! Not too volatile while still being able to win a 5000x, just an amazing game to play!