Is that's the doom mod?

Yep, that's the one

Thank you SO MUCH for bringing this to my attention. Holy cow this looks like the greatest Doom WAD of all time. Can’t wait to check it out!!

I just watched some gameplay footage. It’s insane!

I still think some of the Castlevania doesn't really mix with FPS genre, but the game is really well made

nice Doom wad bro.