For all its advantages, the engine has its disadvantages. So, if the team wants to develop something more complex than a simple clicker or platformer, they will have to find a good C# programmer to write scripts and components, implement them in the game and make them work.
From this comes another problem with the Unity engine: slowness. Creating large, complex scenes with many components can have a negative impact on the game’s performance, and as a result, developers will have to spend additional time and resources to optimize and possibly remove certain elements from the project.
In addition, applications created on Unity are quite “heavy”: even the simplest pixel game can take up several hundred megabytes on a PC. Yes, for a computer hard drive this is a small volume, but if a project is developed for mobile platforms as well, you should think about optimizing its size.