Geschichte:

Adam Jensen, who works as a private security officer at a technology lab specialising in biomechanical augmentations, a forerunner to the sort of nanotechnology shown in the original Deus Ex. One day the path of his life is unexpectedly altered as a team of black ops commandos break into his company's HQ, and using a security plan from Jensen's own hand, a mass slaughter ensues and the conspiracy begins.

Interessantes:

• DX3 spielt 2027 und ist somit die Vorgeschichte zu DX1 und DX2.
• Erst am 26.11.2007 wurde Deus Ex 3 von Eidos offiziell angekündigt, lange nachdem Ion Storm geschlossen wurde und Warren Spector nicht mehr an der Entwicklung beteiligt ist.
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• Deus Ex 3 nutzt die Engine von Tomb Raider 8 – Underworld.
• Logo:
  
• Wir können wieder große Änderungen beim Gameplay erwarten, so Warren Spector in einem Interview vom 04.02.2004:

  When we spoke last November, you were telling us that preliminary work has already begun on the third Deus Ex game. Can we expect three to be as much a departure from two as two is from one?
  
  Spector: Absolutely. I mean, the day we start turning out sequels simply to make a quick buck is the day someone else is going to be making Deus Ex games.
  
  So can we expect to see major changes in the core gameplay and the user interface that you have in Invisible War, in number three?
  
  Spector: I think that what you'll see is us continuing to carve away the bits that don't work and add on the bits that will make it more Deus Ex-like. I can't talk specifics about that, but there are some things... I told Harvey Smith, Deus Ex: Invisible War project director, to give me ulcers - you know, make decisions that make me scream. And he did. And some of them ended up working, and some of them didn't. And I'm not going to tell you which is which [laughs].
  
  But with the third game, obviously we're going to address the things that don't work in Invisible War; and so yeah, it's going to be as different to Invisible War as Invisible War is to the first Deus Ex. It's all about the Deus Ex gameplay experience, to make it better, purer, to give players more control over the experience.

Offizielle Bilder: