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