Yactul is an extensible game-based student response framework for active learning. Its ecosystem fosters continuous learning both in the collaborative setting of the classroom and the private study environment of the student. The modular architecture enables a seamless integration of activities from a broad and extensible set. In addition, a mobile app for offline learning extends the experience outside the classroom and allows to replay quizzes anywhere and anytime, track the progress of an individual learner and suggest activities on topics that require more studying.