The Christmas 2 Add-on for Pixel Puzzles Ultimate Jigsaw has 18 achievements.
Complete Pack: Christmas 2
Complete Puzzle: Cookies
Complete Puzzle: Crackers
Complete Puzzle: Crafts
Complete Puzzle: Decorations
Complete Puzzle: Eggnog
Complete Puzzle: Fence Hat
Complete Puzzle: Gifts
Complete Puzzle: Gingerbread Man
Complete Puzzle: List
Complete Puzzle: Log Fire
Complete Puzzle: Market
Complete Puzzle: Santa
Complete Puzzle: Snow Globe
Complete Puzzle: Table
Complete Puzzle: Treats
Complete Puzzle: Tree
Complete Puzzle: Wrapping Paper