Any help with finding the ui font?

Chalet London 1960  Suggested by thafitos 


Franklin Gothic  Suggested by steelsmiter 
Helvetica Neue 45 Light  Suggested by SirParadox 

Of the fonts already on my system, I found Franklin Gothic Medium does well to emulate it for the RPG manual I'm writing... although you might want light if you can find it.

Grand Theft Auto V’s UI font is called Chalet London Nineteen Sixty.