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