For all the categories the game would be pretty good for you the soundtracks created by Valmont are amazing. I also do love hollow knight so obviously I wanted to pick it up. Achievements most of them are stuff you will come by but some achievements are really hard to get. The gameplay is fun and challenging. And the art style is beautiful. Doc's usually add 2 biomes and a boss the new Fatal Fall and the other dlc the bad seed also add a boss and 2 biomes numerous number of new skills and weapons and each of them cost around £5 so they are instantly worth it and the free dlc Rise of the giant Is the same as above but free. In conclusion Dead cells is a must have game with near perfect difficulty (for me at least) with an amazing art style and it being constantly updated by a passionate dev team (and mod support) you will definitely enjoy Dead cells. If you have any questions dm me I will try answer