Artificial languages are languages of a typically very limited size which emerge either in computer simulations between artificial agents, robot interactions or controlled psychological experiments with humans. They are different from both constructed languages and formal languages in that they have not been consciously devised by an individual or group but are the result of (distributed) conventionalisation processes, much like natural languages. Opposed to the idea of a central designer, the field of artificial language evolution in which artificial languages are studied can be regarded as a sub-part of the more general cultural evolution studies.