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