Bingo halls are leaving the building—and moving online to browsers and mobile...

https://mag-wiki.win/index.php/What_Is_the_Point_of_Progress_Indicators_in_Bingo_Style_Games%3F

Bingo halls are leaving the building—and moving online to browsers and mobile phones. One fun twist is Slingo, which blends traditional bingo grids with slot-machine reels to keep things fresh