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