This is a fun, short-lived, FPS that takes place in the "wild west". That's in quotes because it's much more of a fictitious presentation of the old west than anything based in reality, but I'm not saying that as a knock against the game. Dysentery and tuberculosis would be realistic, but not exactly fun. The story is told by the character Silas while having drinks at a bar and each story that he recounts is a level that we play through. There's not much cohesion between levels, but that actually works with this "playing a flashback" style of story. Plus, it means that there is quite a bit of variety between levels; fighting through old towns, mines, railroad bridges, moving trains, and in the mountains. The story itself is your typical tale of revenge and is both predictable and forgettable, but works to keep things moving forward.
Your weapons consist of various types of pistols, rifles, and shotguns. You gain XP by killing enemies and finding secrets until you level up, where upon you get a skill point to improve your abilities with one of the aforementioned weapons.
It proved to be a pretty stable game, only crashing on me twice, and only one of those being during a level. And it auto-saves frequently enough that, whether from a crash or taking a death, you never have to replay much of a section over again. Although I'm not a big fan of the art style in this game, it does look pretty good at times. The music is appropriate to what you would expect in a western movie. It's also short, which I consider a positive in a game like this, taking me about 6 hours to complete.
If I had to say anything negative, it would be that I had to edit a file to adjust the FOV since there isn't a setting in the options menu. Even then, it never really felt comfortable. Also, the last level was the worst in the game, ending the game on a low note.
It's not Red Dead Redemption, but it's fun if you've got an afternoon or two to kill.