Full list of all 38 Mark of the Ninja achievements. It takes around 20-25 hours to unlock all of the achievements in the base game on Windows.
The base game contains 30 achievements, and there is 1 DLC pack containing 8 achievements.
Distract 25 guards using your equipment.
Earn all the upgrades.
Earn three stars in every level.
Kill a guard from inside the box.
Find all three scrolls in every level.
Complete the game in New Game Plus.
Earn all the Seals in every level.
Complete all of the challenge rooms.
Within a single Focus, aim and throw three different types of items.
Terrify a guard and cause him to stumble to his death.
Get the Undetected honor bonus 10 times in one level.
Stealth kill a guard from inside a dumpster.
Complete a level without killing any guards and without being detected.
Determine your fate.
Escape from the Stronghold.
Complete a level without getting detected.
Assassinate Karajan.
Stealth kill an elite guard after stunning him.
Terrify a guard using the result of a hanging stealth kill five times.
Terrorize 10 guards.
Assassinate Kelly, the mercenary captain.
Kill a guard by getting other guards to shoot them.
Use a dead body to lure another guard and then stealth kill them.
Perform five different types of stealth kills successfully in one level.
Complete a level without killing any guards.
Throw the body of one guard to terrorize another.
Distract 25 guards using environmental objects.
Perform 25 successful stealth kills.
Save Azai from the mercenaries.
Kill one guard.
Read one of the history lesson developer commentaries.
Complete one of the original Mark of the Ninja levels using the Path of Wisdom.
Stun an elite guard with moths then dispatch him.
Disable a spotlight using the Dusk Moths.
Dispatch two enemies at once using a body infected with Toxic Fungus.
Complete the new Special Edition level.
Knock out an enemy again that was revived from being knocked out.
View any of the developer commentaries.