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