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The more complex and diverse game mechanics, content variety, and possible interactions, the more difficult it is to perform correctly and avoid the so-called “spaghetti code’s” ECS pattern. Unity will take care of almost everything on its own, but such projects fail to scale up. It allows us to achieve architecture consisting of highly separated modules. It allows you to make incredibly flexible and customizable connections between entities. This way can be easily added or removed without breaking breaking ones.