In this 35-minute code review video, explore the development of a game engine built from scratch without external libraries. The Cherno analyzes a GitHub project called "GregEngine" submitted by a viewer, examining how the developer implemented core engine functionality using only raw programming techniques. Learn about the challenges and solutions involved in creating fundamental game engine components without relying on established libraries. The video includes insights from The Cherno's experience developing the Hazel Engine, offering valuable perspective for game developers interested in understanding low-level engine architecture. Viewers can submit their own code for potential review in future episodes of this series.