Not only was Deus Ex 3 in development at Ion Storm before its closure in 2005, but the studio mocked up six possible narrative arcs for the title. That's according to a presentation delivered by journalist Joe Martin at a recent VideoBrains event. Martin has original design notes for the canned project, as well as short synopses for two of the six optioned storylines.
"The first is about an augmented Black Ops soldier who goes AWOL upon discovering he's been used for dodgy dealings," Martin wrote on his blog . "His handlers find him and threaten him with either court martial or his wife's execution if he doesn't do one final job." According to Martin, this option would have seen missions switch between flashbacks and current day stories.
"The second story begins immediately after the ending for Deus Ex in which you destroy all global communications. In this story you'd investigate the collapse and try to save your sister from a cult which arises in the chaos."
Martin has gathered the information as part of a project to save the 'deleted scenes' of iconic video game projects. His post touches on the early design stages of Doom as well, and is well worth a read .
Deus Ex 3 did end up happening in the form of Eidos Montreal's Deus Ex: Human Revolution , but it bears few connections to the teams responsible for the original Deus Ex and its poorly received sequel Invisible War. If the history of games which never eventuated piques your interest, then maybe you'll enjoy these early concept images for the original Deus Ex.