The Forever War follows William Mandella as he is drafted into an interstellar war, mirroring the sense of purpose and relentless progression found in Dorsai!. If you enjoyed the way Donal Graeme’s journey is propelled by a singular, ambitious goal, you’ll appreciate Mandella’s struggle to survive and complete his mission, all while navigating the complexities of a universe at war.

If you were captivated by the rigorous worldbuilding in Dorsai!, with its vividly realized mercenary societies and martial traditions, Starship Troopers offers an equally immersive look at military life in a future society. Heinlein’s depiction of Mobile Infantry training, the structure of the Terran Federation, and the technology of powered armor creates a richly believable world you can lose yourself in.

Much like Donal Graeme’s journey from talented newcomer to a transformative force in Dorsai!, Ender's Game charts Ender Wiggin’s evolution as he faces moral and tactical challenges in Battle School. Watching Ender change and mature in response to ever-greater tests will resonate if you enjoyed seeing Donal’s development and self-discovery.

If the strategic depth and political machinations between planetary factions in Dorsai! drew you in, you’ll love Foundation. Asimov’s classic follows Hari Seldon’s plan to guide civilization through the fall of the Galactic Empire, with cunning leaders and shifting alliances shaping the fate of worlds.

Old Man's War delivers the same kind of sweeping, interplanetary action and military adventure that makes Dorsai! so captivating. Follow John Perry as he joins the Colonial Defense Forces, faces alien threats, and adapts to a universe in constant conflict—perfect if you loved the epic feel and martial exploits of Donal Graeme’s story.