In Een Dijk van een Spel 2 to 4 player play a dikereef and must protect low-lying areas (dike-rings) with dikes. The first dikereef, to successfully protect 4 areas in two different regions is declared the winner. Storms and high water makes this a difficult job, though.

Een Dijk van een Spel(literally translated: "a dike of a game") is a game published by the dutch Ministry of Transport, Public Works and Water Management. It features all 53 dike-rings in the Netherlands - areas that need to be protected against the sea and/or rivers.