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