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