Scripting

Unity scripts are written in C#. The helpful resources page includes links to documentation on the Unity scripting API, but scripting is not done within the Unity program. Instead, scripts are imported into the Unity project, meaning they must be written using a separate program. Such programs include VS Code as a dedicated C# IDE, or just a simple text editor like Notepad++. Unity will not run a scene if there are any compiler errors in any of the scripts. A C# IDE will be able to easily highlight these, but if using a simple text editor, Unity will print out the compiler errors to the console when you attempt to compile, allowing you to know what needs fixed.