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