The Winter Add-on for Pixel Puzzles Ultimate Jigsaw has 12 achievements.
Complete Pack: Winter
Complete Puzzle: White Town
Complete Puzzle: Chilly Buddies
Complete Puzzle: Winter Fields
Complete Puzzle: Frozen Stones
Complete Puzzle: Robin
Complete Puzzle: Snowy Vista
Complete Puzzle: Icy Trail
Complete Puzzle: Cold Leaves
Complete Puzzle: Frosty Tree
Complete Puzzle: Snow Carriage
Complete Puzzle: Icicles