Slots have come a long way since Charles Fey’s original three-reel machine....

https://martinsbestjournal.cloudhinter.com/posts/cluster-pays-slots-why-do-they-not-look-like-classic-reels-2

Slots have come a long way since Charles Fey’s original three-reel machine. From Bally’s Money Honey introducing coinless play to video slots lighting up casino floors, and now gaming on your smartphone, the evolution is wild