Mentira, a project launched in July 2009, is the first mobile, place-based, augmented reality game explicitly oriented towards the development of language skills in Spanish. It is set in a Spanish-speaking neighborhood in Albuquerque, NM and plays out much like a historical novel in which fact and fiction combine to set the context and social conditions for meaningful interaction (in Spanish) with simulated characters, other players, and local citizens. While playing Mentira, learners must investigate clues and talk to various non-player characters (NPCs) in order to absolve their own family, proving they are not responsible for a murder in a local neighborhood. In a core component of the game, players are required to visit the local neighborhood in order to collect additional clues and, ultimately, solve the mystery by determining the responsible party.