No idea what a Hades video game is. I've not got many and I've certainly not got the theme. I'm usually good at a literary theme but not in this case. I haven't got 23d, which I assume is the title of a novel. I have D as the first letter. Is that right?
Is it classic literature or ancient Greek or Star Wars (I've never seen the latter)? I'm usually well up on the first, but never did "Classics", though I did attempt to learn Latin in the pandemic. So I have no idea who David is. The only 24ac (an anagram I presume) I know is from 19thC. I think I must have got 28ac wrong as none of the crossers with 24d and 25d make words.
I think I need help to get going! What about clues for 18d (I have ????A?T?) and 15d (for which I only have ????I?????)