Uckers is the traditional game of the Royal Navy. It's origins are lost in the mists of time but it is still played on almost all ships, submarines and naval bases to this day.
The game is played on a ludo board with two dice. Players play as pairs on opposite corners of the board, the aim being to get all your pieces home before the opposing pair do.
The main difference from ludo is that all the players' pieces can be out at once and stacked up, blocking your opponents movement.