Does C++ have any other complement language?

Question

For example: HTML is complemented with CSS and JS

Answer 1

I think maybe C or C#. but this is not accurate. for what purpose are you interested?

Answer 2

I mean, I wanna know if you need another language for the same project (like making video games or apps)

Answer 3

ive used Lua for Open Tibia Servers but the source code for the server was C++, the actions, movements, globalevents, etc was in Lua and Xml