The Unknown Pack Add-on for Coloring Pixels has 21 achievements.
Complete image 1 on the Folklore book.
Complete image 2 on the Folklore book.
Complete image 3 on the Folklore book.
Complete image 4 on the Folklore book.
Complete image 5 on the Folklore book.
Complete image 6 on the Folklore book.
Complete image 7 on the Folklore book.
Complete image 8 on the Folklore book.
Complete image 9 on the Folklore book.
Complete image 10 on the Folklore book.
Complete image 11 on the Folklore book.
Complete image 12 on the Folklore book.
Complete image 13 on the Folklore book.
Complete image 14 on the Folklore book.
Complete image 15 on the Folklore book.
Complete image 16 on the Folklore book.
Complete image 17 on the Folklore book.
Complete image 18 on the Folklore book.
Complete image 19 on the Folklore book.
Complete image 20 on the Folklore book.
Complete all images on the Folklore book.