Unity uses the open-source Mono project, which is one of the many implementations of the Microsoft .NET platform. In fact, all Unity libraries are written in C#.

As in the vast majority of products where performance is required, a certain front of work is assigned to C or C++. Unity does not require the installation of additional add-ons or the connection of libraries, here you can create DLL plugins out of the box.

UnityScript was the second base language of the platform. You can verify this by opening the script descriptions, where the codes are given in both C# and UnityScript. If you are familiar with and like JavaScript syntax— you will enjoy working with Unity.