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