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