Hi there!
At this time, all the classic Super Jigsaw Puzzle games are on sale, with a madness discount and an additional one if you buy them in pack!
https://store.steampowered.com/bundle/9251/Super_Jigsaw_Puzzle_Collection/
Remember that buying a SJP game grants access to its DLC in Super Jigsaw Puzzle: Generations.
Cheers!
https://store.steampowered.com/app/792650/Super_Jigsaw_Puzzle/
https://store.steampowered.com/app/862110/Super_Jigsaw_Puzzle_Cities/
https://store.steampowered.com/app/878250/Super_Jigsaw_Puzzle_Monuments/
https://store.steampowered.com/app/951700/Super_Jigsaw_Puzzle_Space/
https://store.steampowered.com/app/1024490/Super_Jigsaw_Puzzle_Anime_Reloaded/