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.
You found all the endings!
You just became the biggest star here, since there isn't anyone left except for a few extras.
You were the Murderer.
Mrs. Tressabell Johnston
He has such great personalities
From mayhem to meats, the Beefheads did it all
The Beefheads playing for the other side
Magnificent might be a bit of stretch, but the Seven part is undeniable.
Keep all buffalo alive during a Buffalo Drive.
Mrs. Tressabell Sheriff
Sheriff's back to kicking Ass
Beat the game in less than an hour
Beat the game as the Indian
Your Dad was the Murderer.
Beat the game as the Sister
Help the Indians get past the Military Blockade.
Keep Rancher Bob, Bell and Cobb alive during the Mansion Attack.
He had it coming to him.
Sheriff's worse than when you met him
The sheriff helped you 3 times
Lost Miner and Miner's Wife both move on.
Beat the game without getting shot
Beat the game with less then 20 kills
Beat the game as the Brother
Unlock all Weapons
Your family wouldn't give up their land.
Like playing monopoly
Talk to Oilrig Manager at every drilling location.
Prevent any packages from being stolen during the Carriage Protection.
Your mother loved an Indian, and was hiding them in the walls.
The banditos are back to causing trouble.
Unlock all hats at the Haberdasher.
Unlock all playable Characters
Retake our land!
They were all in on it!
Come on now, what did those lizards ever do to you?
Beat the game as the Gunslinger.
Too much PDA, bro.
Sister got the river in Santa Anna flowing again.
A side of justice with your revenge?
Peace between Indians and Military
Free all of the Buffalo enslaved by the Ranchers.
Rancher Franchise Made.
Buffalo wearing hats and stripes.
You know exactly what's on his person.
Mrs. Tressabell Gunslinger
A place to start over.
Two thousand dollars in the bank. It's a lot of money. Takes me three years to earn it!
Trains back in town
Lost Miner reunited with Miner's Wife.
They read it, you weep.
Convince the Ticket Salesman that you're from the Transcontinental Express.
Dispatching justice will require style!
Finally got that Miner's Hat.
Soberly together again.
You just can't keep your hands off the stuff.
It speaks louder than words.
Can't read my...
Find the Movie Set
Unfold the secret of the animal statues.
That buffalo wasn't even wearing the right hat.
It sh*ts money
Digging beyond the veil.
You pretty much shot more people than actually exist, congratulations!
Explore all the things
Explore more
Explore 100% of the map
Now where is that deputy?
Obviously you had to shoot all those people, they were coming right for you!
Explore 50% of the map
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.
This again? We know we just gave you a gun, but you might not want to shoot everyone.
Where do you think you're going?
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!