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