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