Here is the full list of all 40 XIII achievements.
Obtain all achievements.
Complete the campaign on medium difficulty.
Complete the campaign on the highest difficulty.
Find all collectible items.
Complete the campaign on easy difficulty.
Find all the documents.
Complete the Sanctuary cliff section in under 3 minutes.
Find the secret entrance to the Sanctuary.
Find 15 documents.
Find 10 documents.
Complete a level without being damaged.
Swings from a grappling hookc to another 3 times without touching the floor.
Escape the Canyons on a jet.
Find 5 documents.
Stab 15 enemies from behind without being noticed.
Die more than 25 times.
Destory the armor of a fully armored enemy, then kill him with a melee attack.
Get 20 pieces of armor.
Have XIII drown.
Unlock 15 doors.
Eliminate 5 enemies in a row without alerting them.
Find a way into Emerald Base.
Eliminate 15 enemies with a headshot in one level.
Eliminate 3 or more enemies with one grenade.
Kill 4 enemies at once with the Bazooka.
Eliminate 5 enemies in a row with a headshot with the Dragunov.
Get full armor.
Empty the Revolver using the alternative fire mode without missing any shots.
Eliminate 20 enemies with improvised weapons.
Destroy a punching bag.
Eliminate 6 enemies with one magazine of the Revolver.
Find your first document.
Kill an enemy with the last bullet of the revolver.
Make it through a level without shooting anyone.
Find 10 medkits.
Eliminate 5 enemies with your fists in a row.
Eliminate 10 enemies without getting hurt.
Crash everything at the beach house.
Find your first collectable item.
Reach the truck in Brighton Beach.