Learn how to extend the Unity 5 IDE with custom tools like this tile map editor. Investing the time to customize Unity's environment today will make game development much more efficient tomorrow. This simple extension will allow you to easily design large 2D tile maps by simply painting them into your GameObjects. Over the course of the project, Jesse Freeman will show you how to build a tile map class, a custom tile picker, and a tile brush. He'll also show how to customize Unity menus to make your new tools easy to reach.