Online slots evolved from simple classic reels into diverse games offering...

https://thefiguremagazine.com/classic-reels-to-megaways-how-online-slots-became-more-varied/

Online slots evolved from simple classic reels into diverse games offering video themes, bonus features, Megaways mechanics, jackpots, and Slingo hybrids. This variety lets players pick styles and formats that suit their tastes