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