Hot Gems is a new slot game by Playtech that draws inspiration from popular gem-based puzzle games like Bejeweled. Hot Gems has 25 pay lines and five cascading reels. With cascading/collapsing reels, new symbols appear and fall into the spaces vacated by winning combinations. It is a lucrative slot game feature that allows you to win multiple times on one pay line during a single spin. To offset this feature, the machine requires that all bet lines be active each spin, so the minimum bet is 5. For those willing to play for 5 or more per spin, Hot Gems is an exciting, fast-pace game that pays out very well.