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    Cover of Old Man’s War

    Old Man’s War

    John Scalzi · 2005

    John Scalzi channels Robert Heinlein (including a wry sense of humor) in a novel about a future Earth engaged in an interstellar war against more advanced species. Citizens volunteer for the Colonial Defense Forces after retirement, in exchange for which they have their consciousness transferred into a young body, cloned from their DNA but enhanced. If, against the odds, they survive two years of combat (or 10 years if things aren't going well, which they're not), they get another body and enjoy a fresh start on a colony. This is Scalzi's first novel, and it creates a future he will revisit in subsequent stories. John Perry did two things on his 75th birthday. First he visited his wife’s grave. Then he joined the army. The good news is that humanity finally made it into interstellar space. The bad news is that planets fit to live on are scarce—and alien races willing to fight us for them are common. So: we fight. To defend Earth, and to stake our own claim to planetary real estate. Far from Earth, the war has been going on for decades: brutal, bloody, unyielding. Earth itself is a backwater. The bulk of humanity’s resources are in the hands of the Colonial Defense Force. Everybody knows that when you reach retirement age, you can join the CDF. They don’t want young people; they want people who carry the knowledge and skills of decades of living. You’ll be taken off Earth and never allowed to return. You’ll serve two years at the front.

    Science FictionFiction & Literature
    Open LibraryAmazon
    Stats for nerds
    42recommend
    94mentions
    83people
    2008–2026years
    48% recommend40% neutral12% critical

    Mentions per year

    2008201020122014201620182020202220242026

    What Hacker News says

    1. brokegrammerSep 2026
      All Systems Red - Martha Wells

      Old Man's War - John Scalzi

      thread
    2. m463Sep 2026
      litrpg - I've read lots of these, but can't recommend that many. Even better ones can't hold my interest until the end of the series. Some that weren't that bad: solo leveling (up to book ~6), the wandering inn (~11). I listened to dungeon crawler carl (~8 books) and he who fights with monsters (~8).

      scifi - the murderbot diaries, old man's war.

      thread
    3. rationalistMay 2026
      Somewhat lesser-known sci-fi novels I read in the past:

      The Unincorporated Man (and three sequels)

      Cross between science fiction and fantasy: Harry Potter and the Methods of Rationality ("HPMOR") - the premise is that Harry Potter is raised by a good aunt and uncle, and is taught the Scientific Method and so he uses that when encountering magic.

      Old Man's War (and sequels) by John Scalzi

      Redshirts by John Scalzi

      Science-reality: Surely You're Joking, Mr. Feynman!

      Ra by qntm

      There is no Antiemetics Division by qntm

      thread
    4. specialistJan 2026
      Am I wrong to assume those are LLM slop?

      But ya, I love that genre. eg Haldeman's The Forever War, Scalzi's Old Man's War, Robert Charles Wilson's Spin

      thread
    5. PeterWhittakerJan 2026
      Perhaps I am too much of a curmudgeon, but the example first sentence made me not care at all - not about Venice, but about the writer's approach, which seems to want to conjure breathless mystery about something I could easily look up on Wikipedia (or read in tl;dr comments in this thread).

      It ISN'T Venice you need to make me care about, it's YOU! Why should I spend any of my time on you?

      A good first sentence should make me care about your perspective, at least for non-fiction about subjects well-studied.

      Fiction, obvs, differs. Scalzi's Old Man's War had such a great first sentence I devoured the series.

      thread
    6. elcritchJul 2025
      Peter F Hamilton has some great hard sci-fi novels like the Commonwealth series. Super nerdy with some interesting characters.

      John Scalzi is probably my favorite sci-fi author for excellent characters. His “Old Man’s War” is genius.

      thread

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