Heretic Souls - Hardcore

I have already played it for 30 minutes and I still can't understand the tactics of this game. It's hard to play and it's even hard to control. I think it's not a game for me. I keep on dying LOL, I'm running out of patience here. Can somebody show me how this game works? I've read the descriptions and it says "It's the hardest game ever made". What?

It's a No for this game! I don't know if it is just too hard or if it's not playable at all. It doesn't even have a tutorial/instruction. It's so difficult to play and control *ugh*. I can't even kill 1 enemy. I tried to play 20 times but I just kept on dying. Better not to download this game because I think it's just a waste of time. My frustration with playing this is level 100 already.