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