My achievements jump from XV (15) to XXX (30). Somehow XX & XXV (20 & 25) were skipped. How do I get these two to "pop"?

I know free games that don't have purchases (DLC, in-game purchases, soundtrack...) aren't taken in consideration for perfect games but this game has DLCs, so I am wondering why this game is not taken in consideration for that. Thanks.

How many pieces in the puzzles? Are they all the same size?

Hey guys, if you enjoy playing JP World There's another game by the same Dev and plays exactly the same way, look for SteamPunk Jigsaw Puzzles. The artwork is fantastic and you won't find it anywhere else.

Hi, puzzlers! I've read a few comments about some lagging or freezing happening on the larger puzzle sizes, particularly the 600 and 700 piece puzzles. I'm eager to solve this. If you have experienced lagging, sticking or freezing while solving the jigsaw puzzles, please tell me about your problem! Any clues will be helpful for finding the cause of this. Thanks for your help....