Mice Dice the newest RTG online slot machine to hit the net, is available now at Grande Vegas Casino Mice Dice is a 25 pay line slots game with a Major Jackpot that starts at $1000 and a minimum $250 Minor Jackpot! Mice Dice has a FREE SPIN feature where you can win up to 30 free games with prizes up to 12x your bet! Mice Dice also includes the patented Feature Guarantee system, which insures that free games will be triggered within 100 paid spins if not won randomly. There is a FEATURE GUARANTEE BET that costs you an extra 10¢ and up, so if your bet is say $1.00 and you play the feature guarantee, you will be betting $1.40. Mice Dice also has the unique patented Win-Win Feature.