Picked by Ringworld fans

Here are 70 books that Ringworld fans have personally recommended once you finish the Ringworld series. Book DNA is a community of authors and super-readers sharing their favorite books with the world.

Book cover of More Than Human

Carlos Valrand Author Of The Site

From my list on science fiction about investigations and discovery.

Why am I passionate about this?

I am a writer, author of the science fiction novel The Site, and a contributor to the website Internet Looks. During my work as an aerospace engineer and manager I participated in NASA and Department of Defense projects such as the International Space Station, the Space Shuttle, the Strategic Defense Initiative, and the USAF C-5A aircraft. I authored various aerospace system functional requirements documents and technical papers, and developed and taught courses in dynamic simulations, aerodynamics, and space vehicle guidance, navigation, and control. When writing fiction, I use my technical background, understanding of physical principles, and documentation to provide clear and concise descriptions and dialog for the reader.

Carlos' book list on science fiction about investigations and discovery

Carlos Valrand Why Carlos loves this book

I have the 1971 paperback printing of More Than Human, with the Robert Pepper cover art. The book has a special significance for me; although unrelated in plot, it has similarities to my book: it is science fiction, has an unusual structure, a complex timeline, deals with psychology, and features investigation and discovery. The fact that it was written in 1953, before the Internet, Earth satellites, personal computers, and cell phones, facilitates the reader’s attention to the rather complex story. Seven individuals, Lone, Janie, twins Bonnie and Beanie, Baby, Gerry, and Hip, are exemplars of inequality, with peculiar capabilities and shortcomings. The German word gestalt, meaning the forming of a pattern, describes how, together, they embody the next step in human evolution.

By Theodore Sturgeon ,

Why should I read it?

3 authors picked More Than Human as one of their favorite books, and they share why you should read it.

What is this book about?

In this genre-bending novel—among the first to have launched sci-fi into the arena of literature—one of the great imaginers of the twentieth century tells a story as mind-blowing as any controlled substance and as affecting as a glimpse into a stranger's soul. 

There's Lone, the simpleton who can hear other people's thoughts and make a man blow his brains out just by looking at him. There's Janie, who moves things without touching them, and there are the teleporting twins, who can travel ten feet or ten miles. There's Baby, who invented an antigravity engine while still in the cradle, and…


Book cover of Lord of Light

Stefan Vučak Author Of In the Shadow of Death

From my list on hard science fiction by old masters.

Why am I passionate about this?

I became hooked into science fiction as a kid the day I read an illustrated book of 20,000 Leagues Under the Sea. From then on, science fiction became an important part of my reading repertoire. Having wide-ranging interests, I enjoy military techno-thrillers, Anglo-French naval warfare, Greek/Egyptian/Roman mythology, most sciences, history of religions, with an occasional novel that strays from the norm and adds a sparkle to my reading. Mary Stewart’s The Crystal Cave and The Hollow Hills are very close to my heart. Just shows that I’m different. After all, I must do something when I am not writing my own novels! Although I have an extensive library of modern science fiction works, I am fond of many oldies.

Stefan's book list on hard science fiction by old masters

Stefan Vučak Why Stefan loves this book

This book epitomizes all the qualities a hard science fiction story should have, and which many fail to achieve. I found the theme enthralling - men turning themselves into gods, and the scenario frighteningly plausible.

I love this story because it deals with real characters and doesn’t spare their flaws. I sympathized with the main character, a man prepared to battle heaven for freedom, shunning the mantle of godhood. This novel not only entertained but also forced me to think, something I relished.

Once started, this work is difficult to put down and I nodded with satisfaction when I turned the last page.

By Roger Zelazny ,

Why should I read it?

7 authors picked Lord of Light as one of their favorite books, and they share why you should read it.

What is this book about?

Imagine a distant world where gods walk as men, but wield vast and hidden powers. Here they have made the stage on which they build a subtle pattern of alliance, love, and deadly enmity. Are they truly immortal? Who are these gods who rule the destiny of a teeming world?

Their names include Brahma, Kali, Krishna and also he who was called Buddha, the Lord of Light, but who now prefers to be known simply as Sam. The gradual unfolding of the story - how the colonization of another planet became a re-enactment of Eastern mythology - is one of…


Book cover of The End of Eternity

Stefan Vučak Author Of In the Shadow of Death

From my list on hard science fiction by old masters.

Why am I passionate about this?

I became hooked into science fiction as a kid the day I read an illustrated book of 20,000 Leagues Under the Sea. From then on, science fiction became an important part of my reading repertoire. Having wide-ranging interests, I enjoy military techno-thrillers, Anglo-French naval warfare, Greek/Egyptian/Roman mythology, most sciences, history of religions, with an occasional novel that strays from the norm and adds a sparkle to my reading. Mary Stewart’s The Crystal Cave and The Hollow Hills are very close to my heart. Just shows that I’m different. After all, I must do something when I am not writing my own novels! Although I have an extensive library of modern science fiction works, I am fond of many oldies.

Stefan's book list on hard science fiction by old masters

Stefan Vučak Why Stefan loves this book

Told by a master storyteller I enjoy reading, this book grabbed me immediately and drew me inexorably into the main character’s life as an eternity technician.

Not a unique theme – man manipulating his future – but I liked the twist when all future is threatened for the love of one woman. I kept turning pages, wanting to know how my hero would reconcile forbidden love at the price of eternity’s end.

This is a thoughtful book that denied me peace until it ended. I liked the technical concepts revealed in the story and how they were woven into very human reactions. A lesson for our modern time?

By Isaac Asimov ,

Why should I read it?

8 authors picked The End of Eternity as one of their favorite books, and they share why you should read it.

What is this book about?

A spellbinding novel set in the universe of Isaac Asimov’s classic Galactic Empire series and Foundation series

Due to circumstances within our control . . . tomorrow will be canceled.

The Eternals, the ruling class of the Future, had the power of life and death not only over every human being but over the very centuries into which they were born. Past, Present, and Future could be created or destroyed at will.

You had to be special to become an Eternal. Andrew Harlan was special. Until he committed the one unforgivable sin—falling in love.

Eternals weren’t supposed to have feelings.…


Book cover of Dark Matter

Patrick Kanouse Author Of The Shattered Bull

From my list on Chicago as a main character.

Why am I passionate about this?

Growing up in Indiana and Illinois meant that Chicago has always been, for me, the city—the place where people went to make a name for themselves and took the world by storm. From my local Carnegie Library, I read voraciously across genres—history, science, literature. They transported me out of my small town—across the universe sometimes. I learned that setting in fiction was for me a major feature of my enjoyment, and Chicago was where I set my own mystery series. These books, when I read them, explored that grand metropolis—and brought Chicago to life on and off the page. I hope you enjoy these books as much as I have.

Patrick's book list on Chicago as a main character

Patrick Kanouse Why Patrick loves this book

When I closed this book, I set it down and said, “Wow.” I really enjoy reading science books—the ones written for non-scientific folks like me…books by Michio Kaku and Brian Greene—and this one combines my love of thrillers and science in a fantastic way. Jason Dessen is kidnapped and begins a long journey to return home, but to do so, he visits many alternate versions of Chicago.

As every chapter ended, I wanted to continue reading to find out what happened to Jason and his family, to see some new version of Chicago, and to see how or if Jason succeeded. The novel kept surprising me, and Crouch played with the implications of some wild physics concepts.

By Blake Crouch ,

Why should I read it?

16 authors picked Dark Matter as one of their favorite books, and they share why you should read it.

What is this book about?

'Brilliant. . . I think Blake Crouch just invented something new' - Lee Child, author of the Jack Reacher series.

From Blake Crouch, the author of the bestselling Wayward Pines trilogy, Dark Matter is sweeping and intimate, mind-bendingly strange and profoundly human - a relentlessly surprising thriller about choices, paths not taken, and how far we'll go to claim the lives we dream of, perfect for fans of Stranger Things and Ready Player One.

'Are you happy in your life?'
Those are the last words Jason Dessen hears before the masked abductor knocks him unconscious.
Before he awakes to find…


Book cover of A Canticle for Leibowitz

Joel Bigman Author Of The Second Journey

From my list on craziest books that will make you think.

Why am I passionate about this?

I was always a bookworm, even reading the encyclopedia as a child. I was equally drawn to the sciences and literature and ended up getting a PhD in Chemistry. I visited Asia often for my chemistry work and gradually became interested in the philosophy and religion of Asian cultures. Today, I'm more likely to brag about what I’ve written or read about Chinese culture than I am to mention my technical patents.

Joel's book list on craziest books that will make you think

Joel Bigman Why Joel loves this book

I first read the Canticle forty years ago, and yet, when asked to recommend five books, this was the first one that came to mind. It threw me into an insane world, yet one that seemed only too possible.

My favorite character is Abraham, a tent-dwelling timeless man who lives through the several generations that the book follows. I am not a fan of dystopia, but this is an exception. Now that I’ve recommended it- I’m going to go read it again. 

By Walter M. Miller, Jr. ,

Why should I read it?

13 authors picked A Canticle for Leibowitz as one of their favorite books, and they share why you should read it.

What is this book about?

In the depths of the Utah desert, long after the Flame Deluge has scoured the earth clean, a monk of the Order of Saint Leibowitz has made a miraculous discovery: holy relics from the life of the great saint himself, including the blessed blueprint, the sacred shopping list, and the hallowed shrine of the Fallout Shelter.

In a terrifying age of darkness and decay, these artifacts could be the keys to mankind's salvation. But as the mystery at the core of this groundbreaking novel unfolds, it is the search itself—for meaning, for truth, for love—that offers hope for humanity's rebirth…


Book cover of Lucifer's Hammer

Michael C. Bland Author Of The Price of Safety

From my list on a future we probably want to avoid.

Why am I passionate about this?

My father wanted to be an astrophysicist, and as a kid I caught his passion for the future from the many science fiction books he’d left throughout our house. As an adult, the advances in technology have brought the future envisioned in those books closer than ever. My passion for what awaits us led me to write The Price of Safety, which contains innovations that are right around the corner—and have already started to come true (which is freaky), between Elon Musk’s cranial implants to DNA tracking. The world we live in is becoming more like the world in my books. I hope we’re ready! 

Michael's book list on a future we probably want to avoid

Michael C. Bland Why Michael loves this book

The oldest book on the list, Lucifer’s Hammer seems to be an end-of-the-world tale. And it is to a degree: the world is forever altered after a comet enters the earth’s atmosphere and breaks apart, the huge pieces slamming into the West Coast.

It’s the aftermath, though, where things get interesting. How do people survive? How much of their humanity survives with them? This is the story Niven and Pournelle tell, with a level of realism that echoes people’s attitudes and actions witnessed during the COVID pandemic.

With a clash between rival forces leading to a showdown that dictates the survivors’ future, Lucifer’s Hammer has continued to resonate with me years after reading it.

By Larry Niven , Jerry Pournelle ,

Why should I read it?

3 authors picked Lucifer's Hammer as one of their favorite books, and they share why you should read it.

What is this book about?

“The first satisfying end-of-the-world novel in years . . . an ultimate one . . . massively entertaining.”—Cleveland Plain-Dealer

The gigantic comet had slammed into Earth, forging earthquakes a thousand times too powerful to measure on the Richter scale, tidal waves thousands of feet high. Cities were turned into oceans; oceans turned into steam. It was the beginning of a new Ice Age and the end of civilization.

But for the terrified men and women chance had saved, it was also the dawn of a new struggle for survival—a struggle more dangerous and challenging than any they had ever known.…


Book cover of The Other Side of Time

Stefan Vučak Author Of In the Shadow of Death

From my list on hard science fiction by old masters.

Why am I passionate about this?

I became hooked into science fiction as a kid the day I read an illustrated book of 20,000 Leagues Under the Sea. From then on, science fiction became an important part of my reading repertoire. Having wide-ranging interests, I enjoy military techno-thrillers, Anglo-French naval warfare, Greek/Egyptian/Roman mythology, most sciences, history of religions, with an occasional novel that strays from the norm and adds a sparkle to my reading. Mary Stewart’s The Crystal Cave and The Hollow Hills are very close to my heart. Just shows that I’m different. After all, I must do something when I am not writing my own novels! Although I have an extensive library of modern science fiction works, I am fond of many oldies.

Stefan's book list on hard science fiction by old masters

Stefan Vučak Why Stefan loves this book

Above all else, this book entertains! It did not present deep philosophies and character analyses, leaving that to my imagination, which I sort of liked.

Set against a fascinating tapestry of alternate reality worlds, I related with the main character when he finds himself trapped in a place where everything he knows and loves is gone… then slowly finds a way to restore reality and overcomes adversity.

I loved the amusing, somewhat romantic, interactions between the two main characters and an alien who helps them. It added nice flavor to the story that relieved the underlying tension. This is a strong book from an old master worth taking seriously.

By Keith Laumer ,

Why should I read it?

1 author picked The Other Side of Time as one of their favorite books, and they share why you should read it.

What is this book about?

BLINDING LIGHT, NOISE BEYOND SOUND -- A JOURNEY INTO NOTHINGNESS....Imperial Intelligence Agent Brion Bayard was catapulted into nothingness by an unknown force and woke to find himself in a universe not his own. Surrounded by hulking, cannibalistic ape men who called themselves Haroon, Bayard was soon entrapped in a web of time lines. He found himself running from the Hagroon into the arms of Dzok, the educated monkey man of Xonijeel; transported by Dzok to a universe where Napoleon the Fifth was in power and left there to the tender powers of the beautiful witch woman Olivia; struggling in the…


Book cover of Double Star

Stefan Vučak Author Of In the Shadow of Death

From my list on hard science fiction by old masters.

Why am I passionate about this?

I became hooked into science fiction as a kid the day I read an illustrated book of 20,000 Leagues Under the Sea. From then on, science fiction became an important part of my reading repertoire. Having wide-ranging interests, I enjoy military techno-thrillers, Anglo-French naval warfare, Greek/Egyptian/Roman mythology, most sciences, history of religions, with an occasional novel that strays from the norm and adds a sparkle to my reading. Mary Stewart’s The Crystal Cave and The Hollow Hills are very close to my heart. Just shows that I’m different. After all, I must do something when I am not writing my own novels! Although I have an extensive library of modern science fiction works, I am fond of many oldies.

Stefan's book list on hard science fiction by old masters

Stefan Vučak Why Stefan loves this book

From the first page, I loved the self-centered, egotistic main character full of himself. When his deluded sense of self-worth got him into inevitable trouble, I smiled, thinking he walked into it with eyes open. It came as a pleasant surprise to see the character evolve beyond himself and slowly encompass a wider reality that would benefit Earth and Mars… with considerable risk to himself.

A dash of romance, this powerful story, regrettably short, blew me away. I don’t care that the book is old, but I feel the theme stands the test of time as very enjoyable entertainment. A marker with which I judge every book, and this one shines.

By Robert A. Heinlein ,

Why should I read it?

3 authors picked Double Star as one of their favorite books, and they share why you should read it.

What is this book about?

One minute, down-and-out actor Lorenzo Smythe was - as usual - in a bar, drinking away his troubles as he watched his career go down the tubes. Then a space pilot bought him a drink, and the next thing Smythe knew, he was shanghaied to Mars.

Suddenly he found himself agreeing to the most difficult role of his career: impersonating an important politician who had been kidnapped. Peace with the Martians was at stake - failure to pull off the act could result in interplanetary war. And Smythe's own life was on the line - for if he wasn't assassinated,…


Book cover of Machine: A White Space Novel

Charley Marsh Author Of A Desperate Gamble

From my list on sci-fi for visiting alien worlds.

Why am I passionate about this?

In 1966, I traveled to brave new worlds with the crew of the Starship Enterprise. Star Trek immediately became my lodestone, the focal point of my ten-year-old self, and I never missed an episode. A few years later I found Dune, and my love for the SF genre was cemented. I freely admit that I am not a hard science writer. I like to have fun with my stories, to play with ideas. I write first to entertain myself, and hopefully a reader or two along the way. I am a philosopher, a reader, and a writer.

Charley's book list on sci-fi for visiting alien worlds

Charley Marsh Why Charley loves this book

A space hospital for aliens–what a clever idea.

The second book in Bear’s White Space series, Machine is an entertaining blend of SF adventure and multiple mysteries that sucked me right in. A space hospital begins to experience escalating mishaps after a rescue mission returns with the cryo-suspended crew of a stranded generation ship along with its memory-challenged ship’s mind.

Trust is a key theme in Machine, and you can trust Bear’s capable writer hands to tell a whopping good story.

By Elizabeth Bear ,

Why should I read it?

1 author picked Machine as one of their favorite books, and they share why you should read it.

What is this book about?

Meet Doctor Jens.

She hasn't had a decent cup of coffee in fifteen years.

The first part of her job involves jumping out of perfectly good space-ships. The second part requires developing emergency treatments for sick aliens of species she's never seen before.

She loves it.

But her latest emergency is also proving a mystery:

Two ships, one ancient and one new, locked in a dangerous embrace.
A mysterious crew suffering from an even more mysterious ailment.
A shipmind trapped in an inadequate body, much of her memory pared away.
A murderous virus from out of time.

Unfortunately, Dr. Jens…


Book cover of The Renegat

Charley Marsh Author Of A Desperate Gamble

From my list on sci-fi for visiting alien worlds.

Why am I passionate about this?

In 1966, I traveled to brave new worlds with the crew of the Starship Enterprise. Star Trek immediately became my lodestone, the focal point of my ten-year-old self, and I never missed an episode. A few years later I found Dune, and my love for the SF genre was cemented. I freely admit that I am not a hard science writer. I like to have fun with my stories, to play with ideas. I write first to entertain myself, and hopefully a reader or two along the way. I am a philosopher, a reader, and a writer.

Charley's book list on sci-fi for visiting alien worlds

Charley Marsh Why Charley loves this book

Take the concept of diving on shipwrecks and move it into space, then add a mystery and a whole lot of adventure, and you have Rusch’s awesome Diving series.

The Renegat is the 10th book in the series and the most ambitious one yet. Rusch is a master of character and world-building and it shines here. I can’t recommend this series enough.

By Kristine Kathryn Rusch ,

Why should I read it?

1 author picked The Renegat as one of their favorite books, and they share why you should read it.

What is this book about?

As a young recruit, brilliant engineer Nadim Crowe accidentally destroys an entire Scrapheap full of ships. Now, decades later, he ends up on the crew of the Renegat, the only ship in the Fleet ever sent on a mission backwards to investigate an ancient Scrapheap.

Something invaded that Scrapheap and the Fleet wants to know what. Or who.

The Renegat: The only ship the Fleet dares risk. The Renegat: A ship of misfits and screw-ups sent on an impossible mission. All alone in deep space.

A thrilling new addition to the Diving Universe.

Praise for the Diving Series:

Rusch's handling…