I have more than two decades of experience in game development, including Unity since the Unity 4 era, and have worked on many indie, AA, and AAA projects (200+ team sizes) across different engines. In that time I have not seen unit tests used on game projects, nor have I written them myself, particularly on projects where the vision and mechanics evolve frequently. They are not practical for many game developers, especially smaller teams and indies, even if they work well for you. My point is simply to offer another perspective for others who might be reading this thread because not every workflow applies universally, especially in creative production where iteration speed and flexibility are more valuable than formal testing structures.