RailRunner is a game where you act as the 'overseer' for railway stations and trains in a small area - hence the alternative name 'Stinsen', which is the Swedish title of someone who manages trains.

Control is achieved by switching rail-couplings to decide which way the trains will turn at junctions, and it is also possible to stop trains by activating crossing-signs.

The aim of the game is to until you make a certain amount of money, at which time you will get to play a new map. -With operating funds constantly beig deducted, it is a race against time! Along the tracks there are stations that have cargo that they wish to be transported to a certain other station, often within a time limit, and if the transport succeeds the player will get different amounts of credits depending on type of cargo and delivery time.

The player will be 'juggling' the different trains between the stations, trying to make things go smoothly and avoiding deadlocks and delays.