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.
Land 50 deflect kicks.
Complete Tower Challenge Number 5.
Complete Tower Challenge Number 4.
Complete Tower Challenge Number 3.
Complete Tower Challenge Number -3.
Complete Tower Challenge Number -2.
Complete Tower Challenge Number -1.
Find the secret easter egg.
Complete Tower Challenge Number 2.
Complete Tower Challenge Number 1.
Complete the game.
Kill 50% of the harmless animals in the game.
Bring the Hunter down to 1 healthpoint in melee combat.
Throw an enemy into another.
Shoot 21 Mucalosaurus Worshippers from the boat.
Ignite all pyres.
Capture 30 fireballs with the torch.
Annoy the man behind the door.
Input the Malstrum's Mansion secret code.
Learn all advanced combat techniques.