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.
Within a single Focus, aim and throw three different types of items.
Get the Undetected honor bonus 10 times in one level.
Terrify a guard and cause him to stumble to his death.
Earn all the upgrades.
Earn three stars in every level.
Complete the game in New Game Plus.
Stealth kill a guard from inside a dumpster.
Perform five different types of stealth kills successfully in one level.
Kill a guard from inside the box.
Determine your fate.
Find all three scrolls in every level.
Earn all the Seals in every level.
Complete all of the challenge rooms.
Escape from the Stronghold.
Assassinate Karajan.
Terrorize 10 guards.
Stealth kill an elite guard after stunning him.
Use a dead body to lure another guard and then stealth kill them.
Assassinate Kelly, the mercenary captain.
Terrify a guard using the result of a hanging stealth kill five times.
Kill a guard by getting other guards to shoot them.
Complete a level without killing any guards.
Complete a level without killing any guards and without being detected.
Complete a level without getting detected.
Perform 25 successful stealth kills.
Throw the body of one guard to terrorize another.
Distract 25 guards using environmental objects.
Save Azai from the mercenaries.
Kill one guard.
Read one of the history lesson developer commentaries.
Dispatch two enemies at once using a body infected with Toxic Fungus.
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.
Knock out an enemy again that was revived from being knocked out.
Complete the new Special Edition level.
View any of the developer commentaries.