I highly recommend this course to those who want to go beyond simply using the features provided by commercial engines and instead wish to directly design and understand the fundamental internal structure of a game engine. Through this lecture, I was able to gain deep insights into the operating principles of core functions, such as the actor lifecycle and tick management. In particular, learning how to control memory directly with C++ to prevent resource leaks and implementing custom RTTI to handle object inheritance and safe downcasting were invaluable experiences that cannot be gained through superficial study. Furthermore, the process of building the engine as a DLL to separate and link it provided practical CS knowledge that is difficult to encounter in standard university major courses or general tutorials. If you are a developer who wants to know the real reasons behind how engines like Unreal or Unity work internally, I strongly urge you to take this course.