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