The Aliens Add-on for Pixel Puzzles Ultimate Jigsaw has 14 achievements.
Complete Pack: Aliens
Complete Puzzle: UFO
Complete Puzzle: Silhouette
Complete Puzzle: They R Coming
Complete Puzzle: Flashed
Complete Puzzle: All Aboard
Complete Puzzle: Hooman
Complete Puzzle: Hidden
Complete Puzzle: Coooows
Complete Puzzle: Message
Complete Puzzle: Approaching
Complete Puzzle: Mother Ship
Complete Puzzle: Portal
Complete Puzzle: Abduction