This was a perfect game to play Halloween night!
I really loved it. The ambiguity worked in its favor quite a bit. I loved how it refrained from adding lore or text, and let these cursed worlds exist on their own, justify their own meaning. I even came to like the title of the game as super fitting: so, guess I'm collecting artifacts to power up a blood god. Okay with me!
I figured out the codes, but not what is supposed to go on the tombstone. Is it possible we are still missing a secret in this game?