Deus Ex question

They have the same concept, but independent stories

HR is a prequel to the original. I believe you can play them in either way. You should however play them both.

There are also some references ;)

Well they can't be linked. After all, there was a Deus Ex game between the original and HR that a lot of people seem to forget about: Deus Ex: Invisible War

Anyway you should play Human Revolution. Period. And that's David Sarif telling you to do so.

Side steal question - After I bought the 10K credits DLC with the other items, is there any way to go back to mission 1 to take them and come back to the current mission I am on now?

You should play DE in any case because it is a masterpiece.

So I can play HR now and maybe sometime later - original DE?

The original Deus Ex is from 2000, and it looks the part. If you're willing to play old games, you can find a mod to pretty things up slightly, but it's still possible to play without it. Also, Deus Ex is on many "best pc games of all time" lists for a reason, it's really really good... :)

If you do play both you will see how they are connected, but it's mainly extra flavour stuff for the fans. You don't need to have played Deus Ex (or Invisible War, which is the often-ignored second game) to enjoy Human Revolution. Both are great, but if you're not a big fan of ancient games I'd say skip the original, and jump right in to Human Revolution.

p.s. There's a "pacifist" steam achievement if you finish the game without killing anyone - it's not Call of Duty. If you want to run around shooting everyone you can, but you'll be missing the point... :)

Yes HR is prequl so you can play it first and the play the original deus ex, then invisable war if you want

Fuck it I'll buy the 1st one and play it fist