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.
Complete all of the challenge rooms.
Earn all the upgrades.
Earn all the Seals in every level.
Kill a guard from inside the box.
Distract 25 guards using your equipment.
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.
Complete a level without killing any guards and without being detected.
Determine your fate.
Escape from the Stronghold.
Terrify a guard and cause him to stumble to his death.
Terrorize 10 guards.
Assassinate Karajan.
Stealth kill an elite guard after stunning him.
Kill a guard by getting other guards to shoot them.
Throw the body of one guard to terrorize another.
Assassinate Kelly, the mercenary captain.
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 killing any guards.
Get the Undetected honor bonus 10 times in one level.
Complete a level without getting detected.
Save Azai from the mercenaries.
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.