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