Criminal mastermind Mister X has escaped Scotland Yard and it's up to you, Scotland Yard's famous detectives, to catch him! Use travel tickets chasing him by taxi, bus, and underground, around Picadilly Circus, along the River Thames, and through Paddington Station. Will you apprehend this dangerous criminal or will he disappear forever into the London fog?
In Scotland Yard, one of the players takes on the role of Mister X. His job is to move from point to point around the map of London taking taxis, buses or subways. The detectives – that is, the remaining players acting in concert – move around similarly in an effort to move into the same space as Mister X. But while the criminal's mode of transportation is nearly always known, his exact location is only known intermittently throughout the game.