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