Game Mechanic: Re Rolling And Locking

Your mission, Martians, is to swoop down on the pathetic denizens of the primitive planet Earth and scoop up as many of the inhabitants as you can manage. We are interested in samples of the Chicken, Cow, and Human populations so that we can determine which of them is actually in charge. The Earthlings might manage to put up a feeble defense, but surely nothing that a small taste of your Death Rays can't handle. Make Mars proud – be the first Martian to fill your abduction quota! In Martian Dice you will roll 13 custom dice in an effort to set aside ("abduct") Humans, Chickens, and Cows. With each roll you must first set aside any Tanks, representing the human military coming to fend off your alien invasion. Then you may choose one type of die to set aside as well - one of the earthlings to abduct, or Death Rays to combat the military. At the end of your turn, if you have at least as many Death Rays as Tanks, then you may abduct the earthlings you've been setting aside. You can't pick any type of Earthling twice in one turn, but if you manage to abduct at least one of each you'll score a bonus! With each roll you will ask yourself, do you feel lucky?

Eat brains. Don't get shotgunned. In Zombie Dice, you are a zombie. You want braaains – more brains than any of your zombie buddies. The 13 custom dice are your victims. Push your luck to eat their brains, but stop rolling before the shotgun blasts end your turn! Whoever collects 13 brains first wins. Each game takes 10 to 20 minutes and can be taught in a single round. Each turn, you take three dice from the box and roll them. A brain symbol is worth one point at the end of the round, while footsteps allow you to reroll this particular dice. Shotgun blasts on the other hand are rather bad, cause if you collect three shotgun blasts during your turn, it is over for you and you get no points. After rolling three dice, you may decide if you want to score your current brain collection or if you want to push your luck by grabbing new dice so you have three again and roll once more.