I've just discovered a free computer game for learners of German, Spanish or French. It was published by the BBC and is aimed at 15-year-old students who are revising for their GCSE exams.

The game is called "Destination Death": an English journalist arrives at a German/Spanish/French airport to fetch his sister only to find out that she has disappeared and mysterious things are happening at the airport :). Maybe not everybody's cup of tea, but I liked it.

http://www.bbc.co.uk/schools/gcsebitesize/games/