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