Whenever I see any game that has an Increasing Multiplier feature, I tend to compare it with the game 'Blade', one of the best games from Marvel Super Heroes series, which are all no longer available now. In 'Blade', each win during the free spins increases the multiplier, up to 5x, and each non-winning spin would decrease it by -1. What it means is that it was possible to get wins at the 5x multiplier several times, for as long as each free spin achieves a win. This is not the case with this Don Quixote game. The multiplier increases only after 2 free spins, regardless of win or no win, but the multiplier can go as high as 6x. Moreover, the Extra Wild is frozen in this game, not as flexible as in the random positions in Blade, and it doesn't have the Splitting Symbol feature either. So actually, Don Quixote game can never be as good as Blade!
The paytable too isn't as good either. The Windmill Wild symbol only has a value of 3000x the line bet for 5 of them, getting 5 Book Scatter symbols would only a 100x total bet win, and all the other symbols have low values from 1000x down to 30x the line bet for each 5 of them. Since the Free Spins game only awards 10 free spins with a 2x initial multiplier, and cannot even be retriggered, that adds a further dent to the paytable, making it a low one. Not to my liking, not to Playtech's usual higher standards, but what to do.