Building a game engine from scratch that mimics Unreal's architecture has deepened my understanding of engine structures. It was also a great experience to custom-implement RTTI, which I had been using without even knowing the concept. I think this is a truly excellent course because it allowed me to develop more advanced games based on the Sokoban and shooting games you taught. Even for questions that I hesitated to ask for a long time because I thought they were "stupid," the instructor answered them so kindly that I had no trouble learning. I will continue to retake the course whenever I need a refresher to keep your teachings in mind! Thank you...!