Here is the full list of all 38 Mark of the Ninja: Remastered achievements. It takes around 20-25 hours to unlock all of the achievements on Windows.
Read one of the history lesson developer commentaries.
View any of the developer commentaries.
Terrify a guard and cause him to stumble to his death.
Kill a guard from inside the box.
Complete the game in New Game Plus.
Stun an elite guard with moths then dispatch him.
Dispatch two enemies at once using a body infected with Toxic Fungus.
Distract 25 guards using your equipment.
Perform five different types of stealth kills in one level.
Stealth kill a guard from inside a dumpster.
Complete one of the original Mark of the Ninja levels using the Path of Wisdom.
Disable a spotlight using the Dusk Moths.
Within a single Focus, aim and throw three different types of items.
Earn all of the upgrades.
Complete Dosan's Tale.
Terrorize 10 guards.
Get the Undetected bonus 10 times in one level.
Knock out an enemy again that was revived from being knocked out.
Determine your fate.
Earn three stars in every level.
Find all three scrolls in every level.
Earn all three seals in every level.
Complete all of the challenge rooms.
Escape from the Stronghold.
Assassinate Karajan.
Throw the body of one guard to terrorize another.
Stealth kill an elite guard after stunning him.
Perform 25 successful stealth kills.
Use a dead body to lure another guard and then stealth kill him.
Assassinate Kelly, the mercenary captain.
Terrify a guard with a hanging stealth kill five times.
Kill a guard by getting other guards to shoot him.
Kill one guard.
Complete a level without killing any guards.
Complete a level without getting detected.
Complete a level without killing any guards and without being detected.
Distract 25 guards using environmental objects.
Save Azai from the mercenaries.