So, You Want to Make a Game Engine? Weighing the Pros and Cons
So, you want to make a game engine (2023)

Following the recent Unity controversy, I explore whether building your own game engine is worth the effort. Drawing from my experience creating a custom engine for over a dozen games, I weigh the benefits of full control and optimization against the massive time investment and potential burnout. While industrial giants like Unreal offer vast features, crafting your own tool can eliminate frustration and accelerate your learning as a developer.
Suddenly, there is no frustration: you know exactly why the engine lacks a certain feature that you now need. You didn't implement it, simple as that.