Description:

Gnocatan is an Internet playable implementation of the Settlers of
Catan board game. The aim is to remain as faithful to the board game
as is possible.

The server has a user interface in which you can customise the game
parameters. Customisation is fairly limited at the moment, but this
should change in later versions. Once you are happy with the game
parameters, press the Start Server button, and the server will start
listening for client connections.