I will be honest. Was attempting to checkout the original Deus Ex ( because I want that experience as wtih Bioshock II ), and ran into thief. I mean honestly the idea of hiding in shadows and sneaking around is another along with doing it with as little interaction with enemy-units or being noticed.

So many games that have these mechanics but goes under-apreciated outside of the reality that these are unrealistic in real-life outside of associating with drunk-state-of-mind and angry careless people.
I hope I am able to actually give it a real good go as with System-Shock 2, or even complete D-Ex series or even Last Light,

Thanks for your input