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