Ultimate Sudoku Collection

The free levels are neat. The graphics etc. are nothing special as you can see and there really is nothing more to it but there are several different variants of Sudoku I didn't know at all, so that was interesting. BUT if achievements are important for you, you should be warned that most of them are behind the paywall. And what honestly irritates me (even thought it's a minor thing, I just can't get over it): 10 levels of each Sudoku type are free - but you will get an achievement for only 5 of them and then none for all 10 of them - the next achievement is for 25 (paid)! It annoys me to no end! If you actually wanted to 100% this game, you'd need to spend more than 50€ - which is just a ridiculous price! So I'm torn if I should recommend it. I will do so - but only if you either don't care about achievements at all or are simply rich enough to not care about the high price tag or get this at a HUGE discount.

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Like other reviews, I agree that there are far too few free sudoku puzzles to play. 10 free? I can go online and get 600 free then generate another 600, 600 times, for free. My main gripe with this in particular is actually just that all of the hard ones are too easy. I actually finished the "extreme" ones faster than the medium ones. Took less than an hour of my time to get through all of the basic sudoku, so if you are looking for something to sink some time into, this is probably not the one for you. I will say that this is a good introduction to other more interesting sudoku puzzles, and at least you don't have to deal with ads.

me like sudoku. the basics are nice for when I just wanna let my mind glaze over, and the challenging ones are nice for actually giving my mind something to chew on.

Yes

Ultimate Sudoku Collection is a free-to-play puzzle game developed and published by Stanley Lam that aims to be a comprehensive destination for Sudoku enthusiasts. Rather than presenting only the traditional version of the famous number puzzle, the game expands the concept with a large assortment of Sudoku variations, difficulty settings, and additional puzzle packs. It is a title designed specifically for players who enjoy logical deduction and methodical problem-solving, offering an enormous amount of content centered around one of the most enduring puzzle formats ever created. At its heart, the game remains faithful to the classic Sudoku formula. Players are tasked with filling grids according to strict numerical rules, ensuring that numbers do not repeat within rows, columns, or designated regions. The elegance of Sudoku has always been its ability to generate challenging problems from simple rules, and Ultimate Sudoku Collection successfully preserves that appeal. Every completed puzzle feels earned because success depends entirely on logic, observation, and careful analysis rather than luck or random chance. What elevates the experience beyond a standard Sudoku application …