Word of warning, Ubisoft seems to be the publisher of this game, regardless of what the store page says. However, you don't need their rubbish software to play it.
Call of Juarez Gunslinger takes us back to the wild west following the steps of Silas Greaves, mighty bounty hunter. Along the way you'll encounter the classic legends such as the Dalton brothers, Jesse James, Yves Guillemot... You know, all those filthy, good-for-nothing scoundrels that were leeching off hard-working citizens and were later on romanticised by Hollywood and shills.
While this is not a quadruple... *dramatic pause*... no, quintuple-A quality video game, it's fantastic and I absolutely recommend it. The gameplay is fun, the narration's got a pinch of humour, and it's got some truly challenging fights. There are 3 game modes: Story, Arcade, and Duels. Story is self-explanatory; it has replay value, as you can upgrade your skills with XP and change your playstyle. Arcade is about shoot, shoot, shoot and trying to max on points by chaining as many kills as you can. Last, but not least, duels will give you 5 lives and you need to get through a series of duels and get the highest score... Of course, "AAA" will be the top scoring player everywhere.
Something I'd really like to highlight about CoJ:G is the fact that you can find what they call "nuggets of truth" with the real stories or known facts about these characters and other miscellaneous aspects of the old west. This is a really neat feature, as at least the ones I found tend to stick to facts and present them to the player - no lecturing or politicised discourse.
As the one negative point, I want to bring up that the story telling sometimes interferes with the player. If I'm fighting a bunch of enemies and in the meantime the narrator and other characters are talking, either I'm going to listen to the story and mess up the gunfight, or I'll focus on the fight and not really pay attention to whatever they're talking about. 9/10