If you loved the pulse-pounding sense of mission and tactical urgency that Lieutenant James Shelley and his squad face in The Red: First Light, you'll be gripped by Old Man's War. John Perry's journey as a new recruit in a future military—where the stakes are nothing less than the survival of humanity—delivers tightly-structured missions, fierce combat, and a propulsive, goal-driven plot that never lets up.

If you appreciated the hard-edged, plausible science and detailed military tech of The Red: First Light, then The Forever War is a classic you'll devour. Haldeman's depiction of William Mandella's experience as a soldier in a relativistic war is meticulously grounded in real physics and military logic, immersing you in the future of combat with the same authenticity and attention to detail.

If you were fascinated by James Shelley's morally complex decisions and the ethical ambiguity of his actions in The Red: First Light, you'll be drawn to Takeshi Kovacs in Altered Carbon. Kovacs navigates a world where identity and morality are tangled, and every choice is fraught with consequences. The book is packed with tough calls, gray morality, and protagonists who do what's necessary—even when it's not strictly 'right.'

If you were captivated by the realistic, near-future tech and the way it's woven into military strategy in The Red: First Light, Ghost Fleet will hit the mark. This techno-thriller paints a convincing portrait of the next world war, with cutting-edge weaponry and cyber warfare shaping the battlefield—making every chapter feel like a plausible tomorrow.

If you tore through the action and rapid plot developments of The Red: First Light, you'll love the relentless momentum of Leviathan Wakes. From the very first pages, you're thrown into high-stakes chases, explosive confrontations, and an ever-escalating crisis that demands immediate solutions—perfect for fans of fast-paced, unputdownable sci-fi.