There are 30 achievements worth a total of 400 points
Kill one guard.
Save Azai from the mercenaries.
Assassinate Kelly, the mercenary captain.
Assassinate Karajan.
Escape from the Stronghold.
Determine your fate.
Complete the game in New Game Plus.
Earn three stars in every level.
Earn all the Seals in every level.
Find all three scrolls in every level.
Earn all the upgrades.
Complete a level without killing any guards.
Complete a level without getting detected.
Complete a level without killing any guards and without being detected.
Complete all of the challenge rooms.
Terrorize 10 guards.
Distract 25 guards using your equipment.
Distract 25 guards using environmental objects.
Perform 25 successful stealth kills.
Perform five different types of stealth kills successfully in one level.
Kill a guard from inside the box.
Get the Undetected honor bonus 10 times in one level.
Throw the body of one guard to terrorize another.
Within a single Focus, aim and throw three different types of items.
Stealth kill an elite guard after stunning him.
Stealth kill a guard from inside a dumpster.
Kill a guard by getting other guards to shoot them.
Terrify a guard and cause him to stumble to his death.
Terrify a guard using the result of a hanging stealth kill five times.
Use a dead body to lure another guard and then stealth kill them.