
RISK Marciano (copied from the Games Magazine)
Army Separate color for the Martians (Green, of course). After everyone has played a turn, draw a card from the deck. Put three Martian armies there. Back to mix the deck.
They fight until destroyed or captured the territory. If they win give them a letter.
After that, whenever the turn of the Martians, draw a card and put all the hosts that they are going there (three minimum) evenly among the territories (which already had and the new one is just out of the deck). The remaining hosts are placed in the new territory. Then the Martians will attack as they can, until you run with at least one army in each territory (and zero in the territory that was just stealing). The territories to attack the Martians are chosen according to this objective: Collect all their armies into one. They try this first: all except the largest armies are directed toward the largest. Then the largest goes to second largest. They always choose the shortest path. You can throw a die if there is a tie.
Finally, the Martians only by armies change their cards if they have 5 or more (possible under certain rules). They changed hosts to have four or fewer letters.