Jenga

Jenga is a physical skill game designed in the early 1980s by Leslie Scott, based on a stacking game she played as a child in Ghana. Fifty-four hardwood blocks are stacked into a tower of 18 storeys, three blocks per storey at right angles to the ones below. Players take turns removing a block from any storey below the topmost and re-stacking it on top. Whoever knocks the tower over loses.