The Chernobyl Add-on for Pixel Puzzles Ultimate Jigsaw has 9 achievements.
Complete Pack: Chernobyl
Complete Puzzle: Powerplant
Complete Puzzle: Gas Mask
Complete Puzzle: My Kind Of People
Complete Puzzle: Clear Sky
Complete Puzzle: Koleso Obozreniya
Complete Puzzle: Dodgems
Complete Puzzle: Pripyat
Complete Puzzle: Aftermath