Gameplay and FeaturesĪre you ready for a blast from the past? Double Diamond online slot machine takes us back to the good old days of simple, yet exciting gameplay. It’s almost like finding a diamond in the rough, except it’s in your pockets. With the Double Diamond logo acting as the game’s wild symbol, you can double your win just by landing one in a winning combination. They say that diamonds are a girl’s best friend, but in this game, they’re everyone’s best friend. Plus, with only one payline to worry about, you won’t be left scratching your head trying to figure out how you didn’t win even though you thought you matched those symbols perfectly. While some people may think that one payline is outdated, we like to call it classic. With its simple gameplay and retro vibes, Double Diamond is sure to give you a blast from the past. Well, maybe not that long, but it has definitely stood the test of time. This throwback game developed by IGT has been around since before the dinosaurs. Double Diamond is the OG of online slot games.