Here is the full list of all 35 Enigmatis 3: The Shadow of Karkhala achievements worth 1,000 gamerscore.
Land the plane in the mountains.
Learn the Preacher's current destination.
Learn how to neutralize the Reaper.
Repair the cableway.
Send the Beast to the bottom of the ravine.
Find the way to the trapped ally.
Pass the blizzard.
Find the entrance to the burried barrack.
Uncover the body hidden in the snow.
Learn about Raphael's sacrifice..
Complete the game.
Complete the game on expert difficulty.
Complete the bonus adventure
Perform 3 Evidence Deductions without a wrong move.
Perform all the Evidence Deductions.
Perform your first Evidence Deduction.
Collect all Evidence.
Finish any Hidden Object scene with less than 4 mistakes.
Finish any Hidden Object Puzzle in less than 1 minute.
Find 3 hidden-objects within 3 seconds.
Finish all Hidden Object Puzzles without using hints.
Finish 6 Hidden Object Puzzles in a row without using hints.
Find a Morphing Object.
Find half of all Morphing Objects.
Find all Morphing Objects.
Find a Widow's Sorrow.
Find half of all Widow's Sorrows.
Find all Widow's Sorrows.
Find a White Feather.
Find half of all White Feathers.
Find all White Feathers.
Finish 4 Minigames in a row without skipping.
Finish any Minigame in less than 1 minute.
Finish all Minigames without Skipping.
Finish a game of Pair-Matching in less than 3 minutes.