Attain 100% Game Completion statistic in Undead Nightmare.
Find and break a unicorn.
Attain Rank 5 in all Undead Nightmare Challenges.
Find and kill a chupacabra.
Complete "On a Pale Horse".
Complete "Mother Superior Blues" Survivor Mission.
Have every territory saved at the same time during the Undead Nightmare.
Complete "Cure For Most of What Ails You" and "Get Back in that Hole, Partner" Survivor Missions.
Find and kill a sasquatch.
Complete "Curious Tales from Blackwater, USA" Survivor Mission.
Use a pardon letter with more than $5000 bounty in Single Player.
Evade the US Marshals while riding the Hungarian Half-Bred horse in Single Player.
Attain 100% in the Single Player Game Completion stat.
Complete "Remember My Family".
Complete "The Last Enemy That Shall Be Destroyed".
Kill 500 enemies with any pistol or revolver in any game mode.
Complete 15 tasks for Strangers.
Complete "And the Truth Will Set You Free".
Earn $10,000 in Single Player.
Complete "At Home with Dutch".
Attain highest Fame rank and either highest Honor rank or lowest Honor rank.
Win over 2000 chips in a hand of Poker.
Kill and skin 18 grizzly bears.
Obtain Legendary rank in any Single Player Ambient Challenge.
Kill one of every animal species in the game in any game mode.
Uncover every location on the map in Single Player.
Break the Kentucky Saddler, the American Standardbred, and the Hungarian Half-bred.
Complete "An Appointed Time".
Kill 500 enemies with any rifle, repeater, or shotgun in any game mode.
Complete "The Gates of El Presidio".
Complete Tumbleweed and Tesoro Azul Hideouts in Single Player.
Purchase a rare weapon from a gunsmith.
Earn a Gold Medal Rank for a combat mission in Single Player.
Place a hogtied woman on the train tracks, and witness her death by train.
Complete Fort Mercer and Nosalida Hideouts in Single Player.
Complete Twin Rocks, Pike's Basin, and Gaptooth Breach Hideouts in Single Player.
Get 250 headshots in any game mode.
Complete "The Assault on Fort Mercer".
Complete a game of Liar's Dice without losing a single die.
Complete 20 story missions without switching to a new horse at a hitching post.
Obtain the Elegant Suit.
Capture a bounty alive.
Get a ringer in a game of Horseshoes.
Complete a task for a Stranger.
Score a headshot on any enemy using Expert targeting mode.
Complete "Exodus in America".
Fight off 8 unique players during your time on top during Land Grab in Multiplayer Free Roam.
Knock someone out in melee in every saloon in the game in Single Player.
Kill the last buffalo in the Great Plains in Single Player.
Kill 500 enemies with a mounted weapon in any game mode.
Complete all Hideouts in a single public Free Roam session.
Get 10 assists in a single Hideout in a public Free Roam session.
Get from Blackwater to Escalera before sundown in a public Free Roam session.
Create a posse and get the maximum number of members.
Be the top scoring player in any three consecutive FFA games in public matches.
Reach the top rank for multiplayer experience.
Be on the winning team for four consecutive victories in any team based game in public matches.
Become a Public Enemy for 10 minutes and escape alive in a public Free Roam session.
Kill a Rockstar or someone with this achievement in a public multiplayer match.
Complete a Co-Op mission.
Complete all Co-Op missions.
Complete a Co-Op mission with just 2 people.
Gold medal any Co-Op mission.
Gold medal all Co-Ops missions.
Complete a Co-Op mission without anyone dying.
Complete all Advanced Co-Op missions.
Gold medal all Advanced Co-Op missions.
Achieve a kill chain of 10 or more in any Advanced Co-Op mission.
Complete a Co-Op mission without dying.
Come back from a 2-0 deficit and win a Hold Your Own game.
Kill 3 or more players in a standoff or showdown.
Get 3 kills with knives or throwing knives in a single competitive match.
Double capture 3 times in a single Gold Rush map.
Kill 5 players via headshot in a single Shootout or Gang Shootout.
Reach level 50 and pass into Legend.
Get a kill greater than 35 yards with a Tomahawk.
Complete all Tomahawk challenges in Single Player.
Get 25 Deadeye kills with Red.
Get 25 Dynamite kills with Pig Josh.
Complete the Explosive Rifle Single Player Challenge
In a full Multiplayer Poker game, beat the table when blinds are at maximum
In a Multiplayer Poker game, win a hand by forcing someone with a better hand to fold
In a Multiplayer Poker game, win a hand on the last card when you were losing prior
In a full Multiplayer Liar's Dice game, win without losing a single die
In a single Multiplayer Liar's Dice game, successfully make a spot-on call
In a Multiplayer Liar's Dice game, win with only one die left
Get first place in all races in any Grand Prix
Finish a single race without getting shot or killed, and without shooting a bullet
During a Grand Prix, finish a race in first after placing last in the previous race.
While on defense, do not allow the attacking team to capture any of their objectives
Successfully complete either round of a Stronghold map without dying
Get a triple kill while on the attacking team in Stronghold
Attain over 9,001 points in a single Free Roam session
Attain over 50,000 posse points in a single Free Roam session
Make it to wave 15 in Undead Overrun Gametype in Multiplayer.
