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 all the Minigames without skipping them.
Complete the game.
Gather all of the collectable items.
Complete the engine Minigame without skipping.
Finish 3 Hidden Object Scenes without a hint or misclick.
Finish the swap Minigame.
Finish the pipes Minigame without skipping.
Finish 3 Hidden Object Scenes in less than 10 minutes.
Complete a Hidden Object Scene in less than a minute.
Complete 5 puzzles without skipping them.
Complete a Minigame puzzle in less than a minute.
Finish the story from the TV Minigame.
Find 3 hidden objects within 3 seconds.
Complete a Hidden Object Scene without a hint.
Complete a Hidden Object Scene without a misclick.