This article is the product of an Action Research study that aimed at demonstrating the effects of videogames on vocabulary acquisition in a group of 15 students from 8th semester of the program of B.A. in English of the University of Tolima. The analysis of results, gathered by vocabulary tests and students and teachers' journals, showed that the participants could acquire a considerable amount of vocabulary. The experience enhanced the participants' engagement and interactions inside and outside the class. The study allowed the creation of categories de palabras that may serve as a base for further research and implementation in the classroom. Video games seem to be a new trend brought for technology for purposes of pleasure and they have been proved in the educational field as a possible learning mediation, and they will be soon replaced by new devices that could not be considered as an alternative to learn.