Happy 10th Birthday Pixel Puzzles! Here's a long overdue review.

Pixel Puzzles Ultimate is a jigsaw puzzle game. The distribution model is free/DLC but there is more than enough free content to qualify as a free full game without ever spending a cent on DLC (free puzzles, monthly challenges, in-game rewards store, seasonal freebies, etc...). If you do want to support the developer and buy DLC any given Steam sale will have slashed prices on everything (plenty of packs at 90% off) and there are often deeply discounted DLC packages on bundle sites. This is not a pay to win FTP or a paywall locked "free" game. It's a legitimately free jigsaw puzzle game that gives you the option of purchasing more content if you enjoy it.

With regards to the game, to repeat, it's a jigsaw puzzle game. Try it. If you like the way it works, great. If not, no big loss. The one legitimate , oft-repeated complaint about the mechanics is that you can't connect pieces together outside of the board. That's the way this game series has been since it's inception. It's not that big a deal but if you can't get past that, again, no big loss.

The developer (Rōnin浪人) is friendly, responsive, and basically a one-man show who puts a lot of effort into keeping the Pixel Puzzles franchise running. I hope he gets at least another ten years out of it.