Here is the full list of all 26 Light Maze achievements. It takes around 0-1 hour to unlock all of the achievements on Windows.
Complete the first level.
Complete a secret maze.
Delete or reset your progress once.
Restart a level.
Complete 10 Green Levels.
Complete 10 White Levels.
Complete 10 Purple Levels.
Complete 10 Red Levels.
Complete 10 Blue Levels.
Find a secret level.
Complete 10 Yellow Levels.
Complete 10 Teal Levels.
Complete 10 More Green Levels.
Complete 10 More White Levels.
Complete the 5th Green Level.
Complete the 5th White Level.
Complete the 5th Purple Level.
Complete the 5th Red Level.
Complete the 5th Blue Level.
Complete the 5th Yellow Level.
Complete the 5th Teal Level.
Complete the 5th Pink Level.
Complete the 5th Orange Level.
Complete the 5th Brown Level.
Complete the 10th Brown Level.