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