Here is the full list of all 20 New York Mysteries: The Lantern of Souls achievements.
Completed the mini-game with the soldier in the Study with no mistakes.
Collected all additional puzzles in the Extras Menu.
Completed the main and bonus chapters without skipping the mini-games.
Completed the main and bonus chapters without skipping any dialogue or videos.
Completed an HO scene in under 2 minutes.
Completed the Mason collection.
Collected all Morphing Objects.
Completed the Cards collection.
Completed the Violin Keys collection.
Completed the Eagles collection.
Completed the Apples collection.
Completed the mini-game with tea cups in the Buffet without using the Skip button.
Completed 3 mini-games in a row without using a Skip.
Completed the symbols mini-game in the living-room with no unnecessary taps.
Completed a mini-game in less than a minute.
Completed the main and bonus chapters without using any Hints in the HO scenes.
Completed the main chapter on Hard difficulty.
Complete a mini-game in more than 5 minutes.
Completed the main and bonus chapters without using any Hints.
Completed all mini-game levels in the Extras Menu.