Is it any different from just an algorithm in code form, like a program? What makes them unique as in "The Unreal Engine" and "The Jedi Knight Engine"? Also if you can think of any other little details and facts about them I would like to know (just about everything) then please include those too...
P.S. I posted this in the Games & Graphics forums, but it's been hours without an answer, and a lot more people visit the general section.
