Flood water is a coordination game for two players or more.
- glass of water
- sever coins (best when of equal value and as small and light as possible
The (clean) water glass is filled up to the edge with water. The participants one after the other put a coin into the glass. Due to the surface tension of the water the water does not yet spill over. However, when a player is not cautious enough or the glass is finally too much filled, the water will run out of the glass. The player causing this is out of the game. Then, another round is started, until only one player remains.