Just play Dante's Inferno or Doom if you want a good Hellscape themed game.
If you want a game that gives you little to no explanation of what you are doing or how to do it, this is a game for you.
You need an extensive knowledge base of the old testament, religion, and history to truly understand the story. Without this knowledge, the game feels very confusing.
This game will not give you any of the answers you want through gameplay. A Google search helps for most lore.
Graphics aren't great and feel like they need to be refined. Feels like you're playing a PS2 game.