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