Here is the full list of all 20 Lost Lands: The Four Horsemen achievements.
Completed the plates-and-symbols mini-game with no unnecessary touches.
Completed the main and bonus chapters without skipping any dialogue or videos.
Completed the main chapter on Hard difficulty.
Collected all Ghost objects.
Assembled the Magic machine.
Completed an HO scene with no unnecessary touches.
Restored the dwarf mosaic in less than 1 minute.
Completed the animals mini-game with less than 70 handle turns.
Completed the main and bonus chapters without using any Hints.
Completed the main and bonus chapters without skipping the mini-games.
Completed the main and bonus chapters without using any Hints in the HO scenes.
Collected all the pages from the book of Forgotten Lands.
More than 5 minutes were spent in mini-game to complete it.
Completed the mini-game with water level.
Completed an HO scene in under 2 minutes.
Assembled the mechanical device with gears.
Saved yourself from the dark horseman.
Found 3 objects within 3 seconds in HO scene.
Completed 3 mini-games in a row without using a Skip.
Completed a mini-game in less than a minute.