The Waterfalls Add-on for Pixel Puzzles Ultimate Jigsaw has 13 achievements.
Complete Pack: Waterfalls
Complete Puzzle: Bridge
Complete Puzzle: Forest
Complete Puzzle: Ice Falls
Complete Puzzle: Jungle
Complete Puzzle: Plitvice Lake
Complete Puzzle: Rapids
Complete Puzzle: Red Rock
Complete Puzzle: Rocks
Complete Puzzle: Taiwan
Complete Puzzle: Tree Swing
Complete Puzzle: Factory Falls
Complete Puzzle: Kirkjufell