Age is an academic game engine developed in Visitlab/HCI laboratory. Its purpose is to provide a software basis and playground for game development courses. The goal of the thesis is to implement a collision detection module for Age and evaluate its efficiency. In particular, the implementation must provide efficient collision detection between convex objects (e.g., sphere, box, capsule, convex polyhedron) and also collision detection of rays casted to the scene consisting of convex objects and static mesh (which can be assumed to be composed of several convex sub-meshes). The evaluation must give a good insight into performance profile of the module. The text of the thesis should comprise of the state of the art of the collision detection with focus on technologies used in computer games, description of implemented algorithms, and results from the evaluation.