Casino slot machines easily account for almost 70% of the casino’s annual revenue. Beginning and expert players alike enjoy the fun and excitement of pulling the lever or clicking on a casino or online casino slot machine . Mostly because casino slot machines require no special skills, nor are there any strategies to win. Winning at a casino slot machine is completely dependent on luck. We have all heard stories of people who got rich after depositing just a few coins. Those of us who have played casino slot machines also know how easy it is to keep powering the machine because playing is so much fun.