Here is the full list of all 38 MORDHAU achievements.
Block 100 projectiles
Kill 10 enemies with fire
Get 30 assists in a single match
Perform 20 disarms
Finish off 10 enemies with a kick
Reach 1000 assists
Kill 20 enemies with the longsword
Kill an enemy while you are on fire
Chamber 200 attacks
Kill 1000 enemies
Block 1000 melee attacks
Kill 10 enemies in a row without dying
Take 400 damage without dying
Battlecry 500 times
Decapitate 5 enemies in a single game
Lose your head three times in a single match
Get 30 kills in a single match
Kill 5 enemies by trampling them with the horse
Kill two enemies with a single attack from a melee weapon
Kill an enemy after dying
Deflect a projectile with a strike
Regenerate to full health after getting down to 1 health
Complete the tutorial
Kill 30 enemies with fists
Kill an enemy with an icicle
Kill 5 enemies with the bear trap
Kill 5 enemies with the mallet
Kill an enemy with the training sword
Kill an enemy with the pommel throw
Kill 20 enemies with the ballista
Kill 5 enemies with the lute
Kill 10 enemies with the carving knife
Kill 5 enemies with rocks
Land 10 headshots on enemies with projectiles in a single game
Kill 5 enemies with headshots with a couched weapon on horseback
Take a melee weapon out of a living enemy’s body
Kill 5 enemies while climbing a ladder
Cause someone to fall to their death after kicking them