If you loved how Keiji's mission to defeat the Mimics drove every moment in All You Need Is Kill, you'll be drawn into Edge of Tomorrow (the novelization), where the protagonist is also trapped in a brutal time loop, forced to fight, die, and learn with each repetition. The story is propelled by a clear, urgent goal—end the alien threat—and the relentless pursuit of victory keeps the tension sky-high.

If you enjoyed following Keiji's transformation as he relives the same day and learns from each failure, The First Fifteen Lives of Harry August will fascinate you. Harry, like Keiji, retains memories across countless lives, and must evolve and adapt to changing threats. The personal growth and hard-earned wisdom through repetition make this a rewarding read.

If the powered battle jackets and gritty, tech-driven combat in All You Need Is Kill thrilled you, Old Man's War will hit the mark. Scalzi's novel features advanced military technology, realistic depictions of future warfare, and a thoughtful exploration of how science and tech reshape soldiers and strategy.

If the brutal, unforgiving tone of Keiji's battlefield experience hooked you, Battle Royale will grip you even tighter. The story thrusts students into a kill-or-be-killed scenario, delivering relentless violence and a grim exploration of desperation and fear, much like the constant peril in All You Need Is Kill.

If you loved the fast-paced, time-bending action of All You Need Is Kill, Recursion will keep you turning pages late into the night. The story rockets forward with frequent twists—memories and timelines are rewritten, and the stakes escalate with each revelation, keeping you on edge just like Keiji's desperate fight for survival.