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