In the Catan Online World, there is a quick guide for each game, which you can view in the Tavern and also within the game itself.

However, if you have never played the game before, it is recommended to previously read the Online Instructions. There you will find extensive explanations regarding all games of the Catan Online World.

Furthermore, you can have a look at the Prof.Easy Tutorials for the board games, which graphically depict and explain the game rules.