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