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