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