There are currently 22 different player classes to chose from in Merentha. A class is your chosen profession (often called guilds on other MUDs) . When you begin Merentha you begin as an 18 year old child ready to enter the world. It is now, when you are in the game that you must choose a class. You don't have to decide right away though. You can play and even gain a few levels before you are required to join a class.
Once you have decided what you would like to become you must find the main class hall. For example if you wish to become a paladin you will need to find the fighter hall and join there. Some classes are special quest classes. Choices such as Mercenary, Anti-Paladin and Shaman are not available immediately to players. These classes are joined through a quest which you must discover in the game.
Each class has special attributes, abilities, skill and spell lists and even the cost of skill and stat improvement is somewhat class based. For the most part you will not ever be able to change your class so choose wisely. Some classes are easier to play then others, but the harder classes are more rewarding in other ways.