Wikipedia
BrettspielWelt (often abbreviated BSW) is a large, popular, and free German online gaming site. Its name translates as Boardgame World. It contains online versions of over 70 popular classical and modern board games and card games, such as Backgammon, Bluff, Carcassonne, Can't Stop, Go, Settlers of Catan, and Tichu.
A Java-enabled browser is required to play, and registering with the site is not required (though recommended, as many players will not play with unregistered users). All major aspects of the Java client, games and website are also available in English. The site is independent and free from advertising, except for indirectly advertising the games themselves. As a result of the site's popularity, some board game publishers have presented new board games on BrettspielWelt before they are first published.
All players begin (by default) in the game manager, which is used by players from many countries. New players having difficulty getting started can introduce themselves to one of the English-speaking communities for advice and help. BSW offers a system for implementing translations.