Players compete to build the biggest tower. But they have to do it secretly, tucking tower pieces into their bags so that no one can see what they have. If a color is rolled on the die and all of those blocks are gone, the player has to remember who else took a block of that color, preferably a bigger block of that color, and ask for it. If right, the block is turned over. If wrong, the player forfeits his own block. Tottering Towers is for 2 to 4 players.