Over the past decade, there have also been many other big online slot machine wins around the world. For example, as recently as May 2024, one lucky player netted an impressive 12,792,526 playing the Mega Moolah jackpot slot.

The truth is, yes  casinos can control a slot machine or rig it only to give players small wins. Some casinos work with developers to create exclusive games. This gives them even more access to a game's code and RNG.