The Scarecrow Watcher Add-on for Masters of Puzzle has 3 achievements.
Complete Haunted Mill puzzle box in any tileset configuration between the 26th of October and the 10th of November
Complete Witched Night puzzle box in any tileset configuration between the 26th of October and the 10th of November
Complete Scarecrow Watcher puzzle box in any tileset configuration between the 26th of October and the 10th of November