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