Here is the full list of all 79 Westerado: Double Barreled achievements. It takes around 15-20 hours to unlock all of the achievements on Windows.
You were the Murderer.
They were all in on it!
That buffalo wasn't even wearing the right hat.
From mayhem to meats, the Beefheads did it all
The sheriff helped you 3 times
He shot you? That's not what is supposed to happen.
Beat the game in less than an hour
Beat the game as the Indian
Now where is that deputy?
Unlock all playable Characters
Retake our land!
Help the Indians get past the Military Blockade.
Beat the game as the Sister
The banditos are back to causing trouble.
It sh*ts money
Unfold the secret of the animal statues.
Peace between Indians and Military
Keep all buffalo alive during a Buffalo Drive.
Unlock all hats at the Haberdasher.
Two thousand dollars in the bank. It's a lot of money. Takes me three years to earn it!
Lost Miner and Miner's Wife both move on.
You pretty much shot more people than actually exist, congratulations!
Beat the game without getting shot
Beat the game as the Brother
Your Dad was the Murderer.
Mrs. Tressabell Sheriff
Sheriff's back to kicking Ass
A side of justice with your revenge?
Mrs. Tressabell Gunslinger
A place to start over.
Find the Movie Set
Prevent any packages from being stolen during the Carriage Protection.
You just can't keep your hands off the stuff.
Sister got the river in Santa Anna flowing again.
This again? We know we just gave you a gun, but you might not want to shoot everyone.
Unlock all Weapons
Beat the game as the Gunslinger.
Your family wouldn't give up their land.
Free all of the Buffalo enslaved by the Ranchers.
Rancher Franchise Made.
Explore all the things
Buffalo wearing hats and stripes.
You know exactly what's on his person.
Obviously you had to shoot all those people, they were coming right for you!
Trains back in town
Explore more
Explore 100% of the map
Can't read my...
They read it, you weep.
Convince the Ticket Salesman that you're from the Transcontinental Express.
Make the graveyard safe to visit.
Digging beyond the veil.
So you had to shoot a few people, right? No big deal.
Finally got that Miner's Hat.
Where do you think you're going?
Dispatching justice will require style!
Soberly together again.
Explore 50% of the map
Don't go thinking you're Annie Oakley, those three hatshots in a row were just a fluke.
Bla, bla, bla. You just keep jabbering on.
Sadly we have no knives, so you won't be running any faster.
Onwards, adventure awaits!
Come on now, what did those lizards ever do to you?
Beat the game with less then 20 kills
It speaks louder than words.
Magnificent might be a bit of stretch, but the Seven part is undeniable.
You just became the biggest star here, since there isn't anyone left except for a few extras.
Too much PDA, bro.
Your mother loved an Indian, and was hiding them in the walls.
You found all the endings!
Keep Rancher Bob, Bell and Cobb alive during the Mansion Attack.
Like playing monopoly
He had it coming to him.
He has such great personalities
Sheriff's worse than when you met him
Mrs. Tressabell Johnston
The Beefheads playing for the other side
Lost Miner reunited with Miner's Wife.
Talk to Oilrig Manager at every drilling location.