Ah, 'Hero of Darkness'! That series hooked me from the first chapter with its gritty world-building and morally gray protagonist. As far as I know, there isn't a direct sequel, but the author expanded the universe with a spin-off called 'Shadows of the Forgotten,' which follows a different character in the same timeline. It's got that same visceral combat and political intrigue, though the tone leans more into tragedy than redemption.
If you're craving more, the author also wrote a prequel novella, 'Embers of the Fallen,' diving into the backstory of the villain. It's shorter but packs a punch—especially for fans who love unraveling motivations. Honestly, I wish there were more, but these companion pieces help fill the void while we wait (fingers crossed!) for another full-length installment.