The war between the communist state of Arstotzka and its neighbour Kolechia has finally come to an end. And as an immigration inspector you must control the flow of people entering the bordering town of Grestin - watching for smugglers, spies and terrorists among the throngs of innocent immigrants and visitors looking for work.

Using only the documents provided by travellers and primitive inspect, search and fingerprint systems you must decide who can enter Arstotzka... and who will be turned away or arrested.