Thank you very much for your concern F_alk.I had been trying to buy the game for almost three years when one of my friends living in the US finally managed to buy and bring it here from the US.Now that I own the game,my troubles are mainly over.
Before this,just as you have suggested,I was almost sure that the game was sold in Germany,so I looked for it in Amazon,Germany.However,I was unable to find it.This led me to beleive the situation was just the same as it was in Istanbul.You are right,there are shops in Istanbul and many parts of Turkey as well which sell such games.I had talked to most of them,but they said due to lack of demand for the game,they were reluctant to bring only one or two games from Europe.
It is really hard to understand why such a great game does not attract people as Risk or Monopoly does….