Here is the full list of all 25 Fenimore Fillmore: The Westerner achievements.
Finish the game by giving less than 20 carrots to the horse.
Defeat the evil cattleman and his minions.
Blow up the bridge.
Free them from an ambush.
Get dynamite.
Find 100 Dollars for free.
Assault the bank.
Win a spicy sarsaparilla duel.
Win the Winchester.
Making more than 50 targets in the last round.
She needs a doctor.
Buy contraband items.
Send six telegrams.
Release the prisoner.
Deliver an important message.
Have a bank account.
Use a tracker to find someone.
Meet Livy.
Meet the beautiful teacher.
Someone is thirsty.
Fish a trout.
Enter into storeroom.
Welcome to the Far West.
Saddle and ride your horse.
Meet the oppressed farmers.