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