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