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