Here is the full list of all 22 Zeno Clash achievements.
Defeat a heavy enemy without getting hit.
Beat the game without using weapons unless it is absolutely necessary.
Bring the Hunter down to 1 healthpoint in melee combat.
Land 50 deflect kicks.
Capture 30 fireballs with the torch.
Kill 50% of the harmless animals in the game.
Annoy the man behind the door.
Find the secret easter egg.
Input the Malstrum's Mansion secret code.
Complete Tower Challenge Number 5.
Complete Tower Challenge Number -3.
Complete Tower Challenge Number -2.
Complete Tower Challenge Number 4.
Throw an enemy into another.
Complete Tower Challenge Number 3.
Complete Tower Challenge Number 2.
Complete Tower Challenge Number -1.
Complete Tower Challenge Number 1.
Complete the game.
Shoot 21 Mucalosaurus Worshippers from the boat.
Ignite all pyres.
Learn all advanced combat techniques.