In 1941 the British manufacturers, John Waddington Ltd, were asked to create sets which:
– included metal files and compasses as well as the usual place markers
– had hidden silk escape maps
– included real currency amongst the fake money.
A good example of a simulation having a role in the real world.
Incidentally Ive always liked the story that the MD of John Waddincton Ltd sent his son and his secretary down from Leeds to London for a day, to select the place names used in the UK version. Their slightly eccentric choices have become famous to millions.