The Reasons Holy Rummy Is So Popular: Why This Card Game Has Withstood the Test of Time There are a number of reasons why Holy Rummy has remained popular over the years that appeal to players 247 slotsof all ages. Its main advantage is that players of all ages and skill levels can play it because the fundamental rules are simple to understand. Holy Rummy's enduring appeal is influenced by the treasured memories that are made when families get together around a table for an evening game. Also, Holy Rummy maintains player interest by finding a balance between strategy and chance.