I have no idea where Klagenfurt is but if you are in Vienna:
1) Steffl, the kool department store in the middle of town on Karntnerstrabe (between the Opera Haus and Cathedral) is chock full of Euro games on the 4th floor

2) There is a very big Games Workshop at one end of Mariahilferstrabe. Its located in the LaStraff Europa Center shopping center

Enjoy!