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