The Roblox game engine chose to use Lua programming language as their script. This programming language is easy and simple to use. At the same time, it is powerful and widely used as it is easy to learn. Hence, it has been well embraced by Roblox platform users.
The purpose of the Lua programming language is to teach its readers to script API Roblox and use the tools provided by the platform. These tools can then be used for game creation. Although there are some who have tried using VBS or JavaScript on the platform but none is able to compile.