Kill the last buffalo in the Great Plains.
Complete Twin Rocks, Pike's Basin, and Gaptooth Breach Hideouts.
Break the Kentucky Saddler, the American Standardbred, and the Hungarian Half-bred.
Win over 2000 chips in a hand of Poker.
Capture a bounty alive.
Obtain the Elegant Suit.
Purchase a rare weapon from a gunsmith.
Score a headshot on any enemy using Expert targeting mode.
Have every territory saved at the same time during the Undead Nightmare.
Complete "On a Pale Horse".
Complete "Mother Superior Blues Survivor Mission".
Complete "Cure For Most of What Ails You" and "Get Back in that Hole, Partner" Survivor Missions.
Get 250 headshots in any game mode.
Find and kill a sasquatch.
Complete "Curious Tales from Blackwater, USA" Survivor Mission.
Complete "Remember My Family".
Complete "The Last Enemy That Shall Be Destroyed".
Complete "And the Truth Will Set You Free".
Complete 15 tasks for Strangers.
Complete "At Home with Dutch".
Complete "An Appointed Time".
Complete "The Gates of El Presidio".
Kill 500 enemies with any rifle, repeater, or shotgun in any game mode.
Complete Fort Mercer and Nosalida Hideouts.
Complete Tumbleweed and Tesoro Azul Hideouts.
Complete "The Assault on Fort Mercer".
Complete 20 story missions without switching to a new horse at a hitching post.
Complete a task for a Stranger.
Complete "Exodus in America".
Complete a game of Liar's Dice without losing a single die.
Get a ringer in a game of Horseshoes.
Knock someone out in melee in every saloon in the game.
Place a hogtied woman on the train tracks, and witness her death by train.
Kill and skin 18 grizzly bears.
Earn $10,000.
Obtain Legendary rank in any Ambient Challenge.
Attain highest Fame rank and either highest Honor rank or lowest Honor rank.
Earn a Gold Medal Rank for a combat mission.
Uncover every location on the map.
Use a pardon letter with more than $5000 bounty.
Attain 100% in the Game Completion stat.
Evade the US Marshals while riding the Hungarian Half-Bred horse.
Kill 500 enemies with a mounted weapon in any game mode.
Kill 500 enemies with any pistol or revolver in any game mode.
Kill one of every animal species in the game in any game mode.
Complete all Tomahawk challenges.
Complete the Explosive Rifle Challenge.
Attain 100% Game Completion statistic in Undead Nightmare.
Attain Rank 5 in all Undead Nightmare Challenges.
Find and break a unicorn.
Find and kill a chupacabra.
