Here is the full list of all 50 Mount & Blade II: Bannerlord achievements.
Spawning on foot, commandeer a mount and kill 5 enemy players without dying.
Defeat 10.000 troops.
Kill 500 troops with range weapons while on horseback.
Kill an enemy player with a boulder
Kill 10 enemies with a successful chain attack combo.
Execute a lord that you have -100 relations with.
First born child.
Get 1.000 in tributes in a single day.
Repel an attack on the walls.
Own a workshop and a caravan at the same time.
Win 100 tournaments.
Propose and win a policy.
Defeat an Army with your party alone.
Start your own Kingdom.
Capture a town on your own.
Obtain your first fief.
Kill a faction King or Queen in battle.
Assemble Dragon Banner of Calradia.
Become the leader of the tournament board.
Have 100 butters in your inventory.
Finish tutorial.
Defeat Radagos in a duel.
Clear a hideout.
Defeat a force that has 500 more troops than you
Execute a lord that has executed one of your clan members.
Kill 10.000 other opponents in captain mode, with your troops.
Score a headshot from 200 meters away.
Reach clan tier 6.
Visit every settlement in the world in a game.
Make 1 million denars trade profit.
Barbarian victory.
Become a great grandparent.
Kill 100 enemy players with headshots with ranged weapons in multiplayer.
Marry the widow of a lord or lady you personally executed.
Get a kill with a melee weapon, mounted melee, ranged, mounted range, and cauch lance in one skirmish round.
Acquire 10000 denars a day.
Win 100 battles against enemy armies.
Kill 500 troops with a couched weapon while on horseback.
Imperial victory.
Increase any skill to 300.
Have your 7'th kid born.
Assault and capture 100 fortifications.
Kill 100 enemies with charge damage in multiplayer.
Kill 3 enemy players with a single mangonel shot.
Conquer all Calradia.
Craft a tier 6 sword.
Kick an enemy player off a wall to death.
Complete an issue in a hostile town.
Become a king with 21 clans under your rule.
Complete all projects in a settlement.