Deus Ex: Clan Wars

Deus Ex: Clan Wars was the working title of a game developed by Crystal Dynamics beginning in 2004. Clan Wars was originally a spin-off game for the Deus Ex series. However, as development progressed, the game evolved into its own entity separate from Deus Ex series, and was renamed and released as Project: Snowblind.

Development history
Deus Ex: Clan Wars was first publicly mentioned in an April 2004 financial report from Eidos, which mentioned an upcoming "Deus Ex 'Action' game." During the early stages of the project, Warren Spector and the team at Ion Storm provided support to the team at Crystal Dynamics, which was new to the FPS genre. At the time, Ion Storm was concurrently developing Deus Ex: Insurrection, which was intended to be the third main title of the series following Deus Ex: Invisible War.

By the time of E3 2014 (May 11–14), the game had been rebranded as Snowblind, and was showcased in E3 under the new name. Snowblind was revealed to be a tactical squad-based shooter with both multiplayer and single player modes. The game followed a special-ops commando equipped with high-tech weapons, and was set in a civil war inside a "collapsed" China. The game was noted for its similarity to the Deus Ex series. When comparing the game to Deus Ex, IGN wrote, "the game's upgradeability, and its bio-enhanced style does seem rather familiar."

In June 2004, GameSpot reported that Snowblind was indeed the Deus Ex game previously mentioned by Eidos, and that this Deus Ex game which became Snowblind was "Deus Ex: Clan Wars." According to Snowblind developers, the game did begin as "Clan Wars," but eventually "evolved into something that had its own unique identity." Snowblind was published as Project: Snowblind in 2005.

Original placement in the Deus Ex timeline
The originally intended placement of Deus Ex: Clan Wars in the fictional chronology of the series was revealed in 2014 when the proposal document for Deus Ex: Insurrection was released.

The Insurrection document reveals that Clan Wars was intended to be set in 2060, prior to the events of Deus Ex: Invisible War:Note that "prequel to Deus Ex 1" refers to Deus Ex: Insurrection, which was planned to be a prequel set in the year 2027. Since the date for Invisible War is described imprecisely as "2070" (rather than the canonical date of 2070), the description of "2060" could be also be interpreted as similarly referring to a general timeframe rather than a precise date.

The Insurrection document also indicates that Clan War was expected to be released prior to Insurrection.