Abstract
Children that have problems in developing socialization skills before their teens can become socially isolated, leading to low self-esteem and social alienation, and possibly snowballing into more serious psychological problems further into adulthood. In this thesis we present a the implementation for a Serious Game, LINA, that uses Contact Theory to help pre-adolescent children improving the relations with their peers. In LINA, the players, children from 10 to 12 years old, will try to find out what happened to a missing colleague - Lina - and her story through the discovery of augmented reality clues and overcoming challenges cooperatively. This document specifies the game concept, methodology and implementation of a digital prototype for demonstration. Also evaluates said prototype regarding its usability, enjoyment and interest for the players. Conducted evaluation determined that the players find the gameplay and story fun and are keen on playing more of the game. Future work involves revising this first prototype with the feedback from the evaluation session, coming up with new challenges and exploring technical limitations of Augmented Reality in the game context.