Call of Juarez is a Western-themed first-person shooter from the Polish developer Techland. First released for Windows in 2006, it was ported to the Xbox 360 on June 5, 2007. The North American release of the PC version is one of the first games to utilize Microsoft's DirectX 10. It was released on June 12, 2007. Its prequel Call of Juarez: Bound in Blood was released in 2009.
A narrator tells the legend of the Gold of Juarez, which was allegedly meant as a ransom for Moctezuma, held hostage by conquistadores. The treasure was lost long ago and never found again. Nevertheless, many daring souls set out to retrieve the riches of the Aztec Empire, but the treasure is rumored to be cursed.
Source: Wikipedia, "Call of Juarez", available under the CC-BY-SA License.
Players assume the role of opposing primary characters, alternating control between Billy Candle, a young half-native man accused of murdering his family, and his Uncle Ray, a firebrand preacher bent on exacting justice. Their chase across Texas plays out as hunter and prey until they find a common foe.