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!