When people say “the nine circles of Hell,” they often mean a mood: heat, darkness, punishment. Dante’s Inferno is more exact than that. It’s a structure — a way of sorting human actions by the kind of harm they do and the kind of self they become.
The circles move from lesser failures of restraint (like being pulled by desire) toward deeper failures of relationship (like betrayal). The point isn’t spectacle. It’s psychology.
If you want the circles described in the voice of the game, read The Nine Circles. If you want the larger literary orientation, read the Divine Comedy guide.