game`s language

Hi everyone.
I have a little problem, I want, that user can change language in game using main menu without restart the game. Is it possible?

It`s mean, that user, play in game and he want to change game language. He open main menu(show on Esc) and set another language -> French(example), and all text in game, like “health” and other, must be on French.

Thank you

Definitely. This is a good place to start: