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