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