Germany in Europe has 54 casinos and the largest casino is the Hohensyburg in Dortmund. The chart below has links to reviews. The casino pages have. This casino was opened in the year and has been in the top of the most successful casino's in Germany ever since. The Spielbank. The most accurate list of casinos in Germany. Find addresses, read reviews and get the best offers on 67 casinos. One of the biggest 0 reviews. Germany.