Aus der Gefahrenzone is a short side-story to the action-thriller "Sigrids Suche".
The game takes around 20 minutes to play and you need a physical copy of the 18 cards to play it. The game is designed by Jeppe Norsker and Jakob Bang. You can download it from the following link as print'n'play.
Note: You don't need a serial number to play this game.