So
Blood Card is a pretty neat Slay the Spire style card game, with a couple fairly unique mechanics going for it. It's relatively standard so far as card effects go, but the big twist is pretty straightforward: Your health bar is your deck. Damage discards cards, and when you run out of cards in your draw pile it's game over.
Another neat bit is the two-fold win condition: Your default is to get to the end of the run, going through all the rooms and killing the last (currently third, so far as I've been able to tell) boss. Your alternative win condition is killing the 666 hp grim reaper that (usually) shows up 3-4 rounds into each and every fight to try to murder everything there (
including the enemies... which isn't always to your favor), with its HP persisting over the course of the game. Along the way you bash heads with a pretty decently sized host of varyingly difficult opponents in variously irritating combinations, gather your ever increasing pile of cards, and generally do the normal card game things.
Anyway, if you like slay the spire you'd probably enjoy it fairly well, and it's pretty cheap so hey.
... as a parting tip: Any card that automatically or indiscriminately damages enemies, in any way, shape or form,
do not put it in your deck. You can conceptually use the things, but by and large they're functionally traps of self-ownage that will eventually get you beat in the face with an integer overflow joke level damage hammer (and that's not an exaggeration; I've seen one particular enemy reach 65535 projected damage). There's quite a few enemies in the game that react to being damaged in ways that not being in pretty tight control of what you're hitting, when, will cause you to get
hard fucked.
Incidentally, difficulty wise it seems pretty up there, or at least random enough consistent performance is tough to manage. You can figure out some tricks or rules of thumb to get by (and luck out with the easier bosses -- my first "win" was killing Death during the first floor boss fight :V), but it's real easy to get beat into the ground if you run into the wrong enemy combination. I lost 20 something times before I managed my first victory, heh.