@inproceedings { dimas13, abstract = {The increasing use of virtual worlds in diverse areas such as entertainment, simulations and education, has not gone unnoticed by researchers and academics. With their wide application adding to the advancements in computational power, comes the interest to offer richer virtual environments that populated with agents allow a great variety of interesting social phenomena to be simulated. One of the current focal points to achieve that goal has been the agent's identity. Due to its impact in human thoughts, feelings and behaviours, researchers have been focusing on identity and on the way it can contribute to believable and socially intelligent agents. However, many of these works do not assume identity as being dynamic, when in fact identity is known to have a great dependence on the social situation the individual is in. For that reason, we believe that a dynamic identity is especially important if the aim is to build socially believable agents with the ability to adjust their identity and decisions to the situation they are in. Thus, we present the Dynamic Identity Model for Agents.}, booktitle = {Workshop on Social Believability in Games at The 10th International Conference on Advances in Computer Entertainment Technology (ACE)}, keywords = {Intelligent Virtual Agents;Computer Games;}, month = {November}, publisher = {ACM}, title = {Social Behaviour in Games: Dynamic Identity in NPCs}, year = {2013}, author = {Joana Dimas and Rui Prada} }