Buy it! Seriously just get it. Is it grindy? Yes, but you won't mind. Everytime you die (and you will die....a lot) the map is different so it doesn't get boring. I will totally admit I am addicted. Tips: * remap your roll button. Mine is on ZR. Rolling is super important and will cut down on the whole dying thing. You need your roll button to be one your fingers naturally sit on. * use the bow. The shield makes me want to cry. Bow is much better. Freeze bow is epic.
Been interested in this myself. RPS have a good write up that may help https://www.rockpapershotgun.com/2018/08/24/dead-cells-survival-tips/ (8 things I wish I’d known about Dead Cells before I played Dead Cells for dozens of hours)