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