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