Here is the full list of all 80 Mount & Blade: Warband achievements. It takes around 150-200 hours to unlock all of the achievements on Windows.
As a female character, Capture and sell three NPC lords.
As a female character, become queen of all Calradia.
As a female character, make your own faction.
As a female character, help a female claimant reclaim her throne.
As a female character, raise your renown to 50.
As a female character, give a companion character a great sword.
(MP) Win one round in battle mode.
Assist your faction in conquering Calradia.
Rule all of Calradia!
Amass a fortune of 100,000 denars.
Pick a fight with a lord by insulting him or by challenging him to a duel.
As a female character get into a duel with male lord by insulting him.
(MP) Kill 100 people with mounted projectiles.
You have completed the following achievements: Trick Shot, Khaaan!, Agile Warrior, and Harassing Horseman.
(MP) Perform 25 lance kills while mounted.
(MP) Kill 50 cavalry while on foot, the enemy must be killed while mounted.
You have completed the following achievements: Mace in yer Face!, Spoil the Charge, Agile Warrior, and This is our land.
(MP) Kill 25 foes with a blunt weapon.
You have completed the following achievements: Abudant Feast, Mace in yer Face!, Sarranidian Nights, and Art of War/Melee Master.
(MP) Slay 50 foes with slashing weapons.
You have completed the following achievements: Might Makes Right, Choppy Chop Chop, Glorious Mother Faction, and Old school Sniper.
(MP) Kill 50 foes with throwing axes.
You have completed the following achievements: Might makes Right, The Huscarl, Melee Master/Dexterous Dastard, and Holy Diver/Elite Warrior.
(MP) Kill 25 people with throwing weapons.
As a ruler conquer 10 towns or castles.
As a ruler have 3 vassals.
Make one of your melee weapon skills 250.
You have completed the following achievements: Melee Master, Knights of the Round, Every breath you take, I dub thee/Good Samaritan.
Get Married.
Get a character to elope.
Promote one of your followers into a position of power.
Make your own faction.
Be chosen as marshall.
Put a pretender on their rightful throne.
Make one of your ranged weapon skills 250.
You and your army have killed or wounded 5,000 enemy troops.
Become the owner of at least 5 fiefs.
Successfully defend a castle.
Install and play one mod.
Kill 75 enemies with horse archery.
Kill 10 parties of Mountain Bandits.
Kill 10 enemies with a throwing weapon's secondary function.
Get either two agility related skills to 5 or one to 7.
Have a 7 in one of the following skills or a 5 in two; Tracking, Path-finding, or Spotting.
Have two of the following skills at a 5; Trainer, Tactics, Leadership, or Persuasion.
Visit every major town in Calradia.
Face off against 100 enemies using custom battle mode.
Land a shot with a difficulty of 6 while using a crossbow.
Land a shot with a difficulty of 5 while using a throwing weapon.
Land a shot with a difficulty of 10 while using a bow and arrow.
Have two of the following skills at a 5; Looting, Inventory Management, Trade, or Prisoner Management.
Be granted your first fief.
Kill or wound at least 500 enemies.
Kill 75 enemies with throwing weapons.
Finish reading one book through the camping screen.
Defeat 10 enemy parties in the snowy regions of Calradia.
Get one of your healing skills to 5.
Get the engineering skill up to 5.
Win a battle against a lord or party who previously beat or captured you.
Raid 3 caravans and raid 3 villages.
Have a -50 relation with a lord, village, or faction.
Get either two strength related skills to 5 or one to 7.
Camp in the Sarranid region of the map.
Sell 5 people to the ransom broker.
(MP) Your team successfully defended a castle in siege battle mode.
(MP) Win in Conquest mode.
(MP) Win a round of team deathmatch mode.
Recruit 6 hero characters.
(MP) In any multiplayer mode have more kills than deaths.
(MP) Win a round of deathmatch mode.
Enter and win a tournament.
Steal 3 cattle from a single village.
Engage in a conversation with a hero character through the party screen.
Help a lord or party win a fight.
Learn 3 poems from tavern bards.
Harass wondering peasants on the map.
Kill 50 men as a female character.
Eat 6 different types food concurrently.
Cleanse the town of bandits in the opening mission.
Raise your soldiers' morale from low to excellent.