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