http://gaming.stackexchange.com/questions/19502/is-it-really-possible-to-finish-deus-ex-without-actively-killing-a-single-enemy http://gaming.stackexchange.com/

http://gaming.stackexchange.com/questions/19502/is-it-really-possible-to-finish-deus-ex-without-actively-killing-a-single-enemy http://gaming.stackexchange.com/questions/19502/is-it-really... There's only one situation that requires tricking the AI to open a door for you (what some might legitimately consider an exploit). Other than that (which I consider a design flaw) it's entirely possible to get by without killing anyone (though using non-lethal weapons to render people unconscious is of course still necessary at various times).