Here is the full list of all 20 Lost: Find achievements.
Pass the Asian level 500
Pass all European levels
Pass all American levels
Pass the level: can't stop fantasy
Pass the American L-E
After reading the memory clip: Creation
After reading the memory fragment: Destruction
Single turret reset skill times reached 70
Gain golden razor quantity skill
The information of 12 mice was collected
Collect all memory fragments
Pass the 10th Asian level
Pass European L-1
Pass European L-3
Pass the American L-22
Pass the American L-10
Collect the first mouse information
After reading the memory fragment: root
Pass the American L-3
When you first enter the game