The Games and Learning Alliance conference (GALA 2018) is an international conference dedicated to the science and application of serious games. The conference aims at bringing together researchers, developers, practitioners and stakeholders. The goal is to share the state of the art of research and market, analysing the most significant trends and discussing visions on the future of serious games. The conference also includes an exhibition, where developers can showcase their latest products. The conference is organized by the Serious Games Society, that is building a scientific community at international level for shaping future research in the field. This community represents a significant blend of industrial and academic professionals committed to the study, development and deployment of serious games as really useful and effective tools to support better teaching, learning, training and assessment.