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