Here is the full list of all 33 Age of Chivalry achievements.
Get 500 kills with each class
Slay 1000 Agathians and 1000 Masons
Get 200 kills with the Dagger
Hit an opponent with a Javelin from over 100 feet away
Kill 100 with your Warhammer.
Score 150 points or more on Sorrow
Slay 25 with throwing axes.
Slay 25 with throwing knives.
Get 20 decapitations in one round
Get 1000 kills with the Longbow
Accumulate 1000 Kills.
Kill 10 players with your hand axe.
Torch 5 players to death in one round
Kill someone with an oilpot.
Decpitate 2 opponents with 1 swing
Decapitate an opponent that is on fire
Headshot, Decap or Head Explodie the last person to kill you after dying.
Get 200 Kills with the Longbow
Kill 3 people while on the brink of death
Get a Headshot with the Ballista
Get 50 kills with the Longbow
Get 10 Headshots with the Bow in one game
Kill 5 enemies without dying
Get the first kill in a round
Destroy the developer gravestones in Death Valley.
Decapitate a peasant in The Shore.
Be mean to animals.
Chop down the Tree in The Shore.
Execute a prisoner in Dark Forest.
Push the cart on Dark Forest.
Push the bomb cart in Helms Deep.
Found the secret room!
Fire the Trebuchet in The Siege.