With so many gem-based puzzle games coming out on what seems like a monthly basis, it’s tempting to consider a name like “Gem Rush” as a metaphor for the current state of the genre on Facebook. Most, to be sure, are forgettable, and even the best of them sometimes feel like doppelgangers of Bejeweled Blitz. I’m pleased to say that this isn’t really the case with Gem Rush. Far from being a mere rip-off, Gem Rush provides a slick, fast-paced experience that will suck you in for dozens of minutes at a time. The only is question is whether if offers enough to keep its players past the initial rush.