The increasing adoption of e-Learning technology is facing new challenges, such as how to produce student-centered systems that can be adapted to each student's needs. In this context, educational video games are proposed as an ideal medium to facilitate adaptation and tracking of students' performance for assessment purposes, but integrating the games in the educational flow presents technical and practical challenges. Moreover, their eventual integration should be accomplished according to the current standardization trends in e-Learning to simplify general adoption. Barriers still exist between the gaming and e-Learning communities, preventing their mutual interaction. In this work, the authors present a middle-ware to bridge this gap, integrating adaptive educational video games in e-Learning environments with a special focus on the ongoing standardization efforts. (Contains 4 figures.)