In the last couple of years, online slots have gained a lot of popularity for offering most entertaining and engaging game-play. Since it's arrival on the online platform, the intensity, fun, entertainment, range and rewards, everything has increased to manifolds. Players are enjoying them more than offline slot machines. With so much variety and rewards, online version is going down well with the millennials and online casinos are gaining strong player base like never before. Thanks to the contemporary online slot machines that are fully loaded with interesting features that one can't ignore.