Why is this issue occurring with my models?

I’m building a game using Unity, and have modeled the zombies for my game in Unity as well (collection of cubes and cylinders) (not the most practical method)


When the zombies are moving in-game, the model overlaps itself and looks terrible.


Is there any reason to why this is happening? What can I do about it?

Most likely this has to do with the scaling of each child game object. When you want to make custom assets in Unity I recommend using ProBuilder
It’s an excellent tool that should be built in.