Here is the full list of all 15 Demon Hunter 2: New Chapter achievements. It takes around 3-4 hours to unlock all of the achievements on Windows.
Finish 3 Hidden Object Scenes without a hint or misclick.
Gather all of the collectable items.
Finish all the Minigames without skipping them.
Complete the game.
Complete the engine Minigame without skipping.
Finish the swap Minigame.
Finish the pipes Minigame without skipping.
Complete 5 puzzles without skipping them.
Complete a Minigame puzzle in less than a minute.
Finish the story from the TV Minigame.
Complete a Hidden Object Scene in less than a minute.
Finish 3 Hidden Object Scenes in less than 10 minutes.
Complete a Hidden Object Scene without a hint.
Complete a Hidden Object Scene without a misclick.
Find 3 hidden objects within 3 seconds.