Platform(s): unknown, but probably PS2 or PS4... could also be Mac or iOS
Genre: probably hack'n'slash, dungeon crawl or horror/surival?
Estimated year of release: more than 5 years ago, but beyond that, I can't say
Graphics/art style: unknown
Notable characters: unknown
Notable gameplay mechanics: there are boss fights!
Other details: Sorry to be so light on details. I really only remember one detail: there's a repeated sound bite in it where one of the enemies says "Suffer!" during an attack. IPretty sure this is a boss or mini-boss, and that this utterance accompanies a special attack it does, feel like I have memories of having to do some kind of dodge while hearing this? It's a not-very-deep male voice, and there's no distortion or special effects applied to the sound.
I have played a lot of Blizzard games over the past couple of decades, but I think that, through asking friends and AI, I've ruled out any of these. Most of my gaming in the past decade has either been on my iPhone, Steam/Mac or PS4. Before that, all I had was a PS2, but I don't think this memory is that old.