From the renderer to the physics system, sound architecture, scripting, AI and networking, game engines either natively power every aspect of a game, or they allow other specialised middleware to slot into the game's framework. In any case, game engines are the workhorses of modern videogame development.
Turkish culture has undergone profound changes over the last century. Today, Turkey may be the only country that contains every extreme of Eastern and Western culture (along with many compromises and fusions between the two).
Turkey is one of the fastest growing tourism destinations in the world, a truly fascinating country, culturally and historically, a great place to visit.