The romance was too dry, I didn't care for the main characters, I didn't root for them. As I always say when writing a romance the task of the author is not to show me the love but to make me feel it. If you introduce two characters who were meant to be and that love each others no matter what having only just met I just won't bother to symphatize with them because you didn't give me the means to do it.
Plus I was expecting a quirky read, I thought this was going to be a Neil Gaiman-esque story but I was fooled. Love and Death reminded me of Crowley and Aziraphale from Good Omens at first but then I realized they were plain and two-dimensional. They're too human and are not moved by any motivation at all. The author could have explained the Game better, could have narrated previous ones and not just throwing names of famous lovers every now and then just to spare herself some more work.
I found the story way too long but basically, plot-wise, nothing interesting and believable happened.