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