25 Best Science Fiction Book Series Ever (2020)

Science fiction is a genre that can never run out of exciting reading material as there are simply countless things that can happen in these types of stories, amazing worlds to explore, deadly and global threats to prevent, amazing alien races to meet, and so much more.

The books that you are about to see in this best science fiction book series review are, in our opinion, a few of the top ones out there so be sure to choose your favorites and start reading some amazing stories.


Best Science Fiction Book Series


Foundation Book Series by Isaac Asimov

The first sci-fi book series holds seven books for you to enjoy and the plot inside revolves around a crumbling empire that is soon approaching its end and the struggle of forming a new world of the civilization of man. We covered Asimov’s name on our list of the top sci-fi books as well, check it out!

A special character from the story has the ability to see in the future and what he sees is definitely something to worry about.

The story then focuses on a sanctuary called Foundation that a bunch of the smartest people ever create together as this Foundation will be handling the uprising of a new and better world, and not succumb to the prophecy that has so many worried.


Dune Book Series by Frank Herbert

The next book series is one of the best science fiction book series. Dune is divided into 8 exciting books that talk about a series of events that are set on a desert planet called Arrakis. You can find the first book in our ultimate selections of the best science fiction books or top science fiction fantasy books!

You will be mostly reading about a character known as Paul Atreides as he is the main character of the entire series and the special thing about him is that he will soon discover a power within him that is simply too much for anyone to believe and this new power will give him the name known as Muad’Dib. For more info, you can take a look at our review of the best space opera books!


Hyperion Cantos Book Series by Dan Simmons

This book series holds 4 books inside that will be showing you the story about Hyperion, a planet that is home to one of the deadliest creatures you will ever read about in sci-fi. We covered one of the books in our article about the top space opera books!

This creature, called Shrike, lives outside the law of any civilization like the Hegemony of Man and almost all fear it.

You will later find that there are actually a lot more mysterious things in this world than just this deadly and feared monster, there are the Time Tombs where a lot of strange stuff will be presented along the way. There are also more deadly threats for man in the later books as you are about to read some very fascinating stuff. For more info, take a look at our review of the best sci-fi fantasy books!


Vorkosigan Saga Book Series by Lois McMaster Bujold

This is a pretty lengthy book series, it has a total of 16 books for you to enjoy reading and the story might even leave you wanting more after you are finished.

The plot inside is a vast one and it’s a series with space travel, a lot of advanced technologies, amazing characters, and stuff like that.

The main things, to know about this book series is that humanity has colonized a galaxy in which they are the only civilized species, they can travel super-fast in space through wormholes, there is a lot of politics in the story once you meet some other civilizations and that’s when the story gets super exciting. This is just scratching the surface as this book series will have plenty more surprises to offer. If we made you interested in the series, take a look at our review of the first book called Shards of Honor.


Revelation Space Book Series by Alastair Reynolds

Before you get into this story, first there is a bit of history to learn. This is another exciting science fiction book that first introduces you to the Amarantin civilization and tells you what exactly happened to them. For even more similar books, take a look at the top hard science fiction books review.

The story starts as you read about something that happened 900.000 years ago, the Amarantin civilization was just about to discover space flight before something completely destroyed all of it, without leaving a trace.

Then you read about a scientist called Dan Sylveste who is doing everything he can to discover what really happened then before it repeats itself this time. When it comes to great science fiction book series, this one hits the spot. That’s why we also included it in our selection of the best space opera books!


Ender’s Saga Book Series by Orson Scott Card

This series tells you a pretty exciting story about a kid named Andrew Wiggin, also known in his computer games as Ender. It is not so surprising that you can also find it on our list of the top science fiction books ever.

The story starts with him playing computer games and not knowing that he was actually doing the simulated training test released from the army for recruiting the best soldier against a war with aliens.

Once Andrew proves that he is the best, his new life begins and you are about to see what a war with aliens really looks like, there are countless adventures, many dangers, tons of cool characters, and so much more that this series will have to offer. You can also find it on our list of the best science fiction books for teens.


Hitchhiker’s Guide to the Galaxy Book Series by Douglas Adams

Here is another series that talks about the destruction of Earth and in this one, the reason for our precious planet being destroyed is because it was in the way of a galactic freeway that was being constructed. You can also read about it in our selection of the best science fiction fantasy books!

You get to meet an interesting character who is saved just seconds before the whole Earth is no more and the one who saves him is his old friend Ford Prefect.

After this, the series finally begins and you get to read some pretty cool space adventures as these two characters travel to some pretty strange places, meet some unique and weird characters, and simply never let you be bored while reading this amazing series. For more similar books, don’t hesitate to check out our best sci-fi books selection!


Culture Book Series by Iain M. Banks

Science fiction books with wars never get boring as no two wars are the same and most of them get to a pretty huge scale. This book series is another war one alright and you get to read about a war that rages across an entire galaxy.

A war that has already taken billions of lives, affected entire planets and moons, and one that wasn’t looking like it could end very soon.

In this book series, you get to read about a bunch of characters, each one with their own thrilling story and journey to tell. There will also be a lot of cool worlds to read about and everything that happens on them. Be sure not to miss out on this interesting sci-fi book series. If we made you interested in the series, you can take a look at our review of the best space opera books, where we covered one of the books.


Honor Harrington Book Series by David Weber

Here are 14 books that you will remember reading for a long, long time if you are a true science fiction enthusiast as the story inside is among the most thrilling on this list. We included one of the books on our list of the top space opera books, take a look at it!

The title of the series says it all, this whole book series revolves around a character named Honor Harrington and his space adventures.

You get to read some thrilling events that include this amazing character as he is described as a heroic person, brave, and never letting anyone down. Don’t worry, you will get to meet him soon enough if you should decide to start off with this amazing and lengthy science fiction book series. We also covered the second book of the series in our reviews of the best military sci-fi books and best science fiction books with female protagonists. Make sure to check it out.


Old Man’s War Book Series by John Scalzi

Our next pick one of the best science fiction book series and a truly amazing and unforgettable story and the reason for that is simply because of the main character and protagonist inside. His name is John Perry and the story follows him as he is about to go and join the army. It’s definitely deserved its place among the best sci-fi books ever!

The special thing here is that he is 75 years old and this army is actually looking for people like him because the war that is currently going on is between humans and aliens. You get to read an entire series about this old soldier and his adventures through space. You can also find one of the books of the series in our selections of the best military science fiction books and the top space opera books!


Ringworld Book Series by Larry Niven

These five books from the Ringworld series hold another great adventure that follows after the discovery of a truly strange and astonishing structure in space.

It’s an object, a huge object, that resembles the appearance of a ring. A bunch of aliens discover it but are too afraid to explore deeper as who knows what might present itself, it’s a never before seen object before after all.

So they form a team of a bunch of characters who will go and explore its contents, what follows next is an amazing story that will leave you wanting more after you are finished reading it. You can also find Niven’s name in our selection of the best classic science fiction books!


Moties Book Series by Jerry Pournelle

This sci-fi book series is actually a trilogy and it’s quite the adored one among science fiction fans. This story starts in the year 3016 and takes place in a world where the 2nd Empire of Man has managed to grow and spread their civilization across the stars.

The thing that helped most in this was the Alderson Drive, a piece of tech that has the ability to travel faster than light.

Then you discover an alien race called Moties, they are described as dangerous and it’s said that they have been in quarantine for 25 years for reasons that you will find out yourself in the book, we don’t want to give out too many spoilers after all.


Rama Book Series by Arthur C. Clarke

There are originally 4 books in this series but there are also a bunch of short stories implemented in between a few of the original books which definitely add a lot of insight to the main story in the series.

Anyway, this story starts out as you discover an object called Rama, scientists believe that this is a natural object just traveling through space at unbelievable speeds.

Then they discover that this is actually a spaceship, an alien spaceship and so begins a thrilling story of discovery, mystery, and thrill. The books will span for many years after the discovery of Rama and the first contact with the aliens inside and you get to find out what exactly goes on in this thrilling story. You can also find Clarke’s name on our list of the best science fiction books ever!


Heechee Saga Book Series by Frederik Pohl

Our article about the best science fiction book series is showing you 6 more thrilling books in this series and the plot in this one revolves around a gateway that has opened leading to all the wealth in the Universe and all of the horrors that come with that.

The main character who will be discovering this mysterious place alongside you is Robinette Broadhead and he starts his journey to the gateway on the Heechee spacecraft.

Half of the book series talks about how this character experiences his journey to the gateway and what happens inside. Then you find out what he actually manages to achieve with this whole adventure and so much more is to come in the remaining books. One of the books can be found on our list of the best space opera books.


The Expanse Book Series by James S. A. Corey

Check out this complex story where so many things are happening at the same time. This plot in this one focuses on the fact that humanity has managed to colonize quite a lot of the solar system, Mars, the Moon, Venus, and much more, but they are still unable to travel to other star systems and this is something that might be changing pretty soon. You can also find it on our list of the best space opera books.

This story will offer a lot of reading material and quite the unique one as well, there will be supersoldiers in space, politicians on Earth, all sorts of deadly threats that are hard to beat, and much, much more. If you are interested in the series, we included the first book of the series in our review of the best hard science fiction books!


Space Odyssey Book Series by Arthur C. Clarke

There are 4 books in this series by Arthur and these 4 books are about to show you a thrilling story that talks about, well, a space odyssey.

It all starts as something very strange appears on the Moon, something that is definitely not meant to be there by itself. This story will require and force humanity to travel deep within the solar system and so much happens before they reach their destination.

A character you will be reading a lot about is Dave Bowman, also known later as the Star-Child. You will soon find out why this book series is a bestseller as this space adventure is an unforgettable one, no question.


The Uplift Saga Book Series by David Brin

The Uplift Universe is a vast one and you will learn a lot of new stuff about it as you read book after book. There are six books in this thrilling science fiction series book and you get to read about a few alien races that interact with humanity.

Tons of planets to explore, unique and strange characters will make the story all the more exciting and all of that starts as you first read about humanity and their place in this very complicated world.

There is a civilization called the Five Galaxies which consists of multiple species and you get to meet each of them.


The Book of the New Sun Book Series by Gene Wolfe

Here is one of the best science fiction book series out there that definitely has a unique plot to it. This type of story writing is definitely not common but it’s super exciting to read about. The story starts as you get to meet the main character of the series, the young Severian.

He has just been cast out of his own city and from the Guild of Torturers because he committed one of the greatest sins, he showed mercy to his victim.

The story continues as he is exiled from his city and a lot of thrilling adventures await in the world beyond.


Takeshi Kovacs Altered Carbon Book Series by Richard K. Morgan

This trilogy, as you can guess from the title, talks about a character known as Takeshi Kovacs and the events going on in his world. We dedicated a whole article to this amazing series, make sure to check out our Altered Carbon book series review.

Takeshi is an ex-U.N. envoy who has recently turned private eye, killing bad guys easily, and working for a bigger goal, helping a planet’s government put down a bloody revolution.

This is just a bit of info about this character from the first book, you will later find out that when it comes to choosing sides, Takeshi only works for his own side and does what is best for him, as a good survivor will always do. You will definitely have a lot of fun with this character, no doubt. The first book of the series can be also found on our list of the best cyberpunk books!


The Gap Cycle Book Series by Stephen R. Donaldson

The Gap Cycle is a brilliant science fiction book series that tells you a thrilling story in a series of five books. The main plot happens in a world where humans have perfected space travel and have reached various areas of the stars, mainly for commerce.

There are two major story arcs that these books describe and lead to. One of the story arcs follows Morn Hyland, an ensign in the United Mining Companies Police and he is just trying to stay alive after he was unfortunately captured by a raider named Angus Thermopyle.

The second arc talks about three interesting characters who have a lot to do with the UMCP and their CEO, Holt Fasner.


Zones of Thought Book Series by Vernor Vinge

Our next choice for one of the best science fiction book series out there is Zones of Thought, a sci-fi book series that has only two books inside, but these two books are enough to tell you another amazing story.

The world in which this story takes place is divided into five zones, the whole universe is basically divided into them and every intelligent species belongs in their own zone, based on their evolution and abilities.

Humans belong in the slowness zone where nothing is yet able to travel faster than light. Be sure to discover the rest of the zones and the excitement that comes with them. Check out our review of the top science fiction books or top space opera books for more information!


The Wheel of Time Book Series by Robert Jordan

The Wheel of Time book series also holds a highly adventurous plot where you get to meet more amazing characters and travel to some pretty exciting place. The first book of the series, The Eye of the World, introduces you to the main character, Rand al’Thor, and so begins this epic adventure. We covered the first book in our review of the best books like Eragon. Don’t hesitate to check it out!

The series is actually a science fiction and fantasy as there are quite a lot of things that can relate to myth and legend and the fantasy places the story takes you to are super incredible and kind of familiar, nonetheless, the series is super fun to read.


Mars Trilogy Book Series by Kim Stanley Robinson

Most science fiction fans absolutely love reading stories about Mars and all kinds of events related to our neighbor planet. The reason for this is because we are closer than ever to colonizing Mars and reading stories like these can sure bring a lot of excitement.

Anyway, this amazing trilogy talks about 100 colonists who will bravely volunteer to go to Mars and attempt settling there.

The mission is hard, there is a lot of terraforming to be done and a lot of mysteries to uncover. Definitely one of the most exciting reads here.


Hainish Cycle Book Series by Ursula K. Le Guin

The story in our next to last book introduces you to three humanoid species that all share the Earth and a series of events that are completely new to them. The series was written by Ursula K. Le Guin and you can find her name on our lists of the top sci-fi fantasy books and the top classic science fiction books as well.

These races that we speak of are the Gdemiar who live in caverns, the elvish Fiia, and the warrior clan Liuar. It’s an average old day on their planet until they witness an object approaching from above, coming from the stars.

This object turns out to be an alien ship and so begins the exciting battle for survival. You get to see intense battles as the story progresses, book after book, it just gets more and more exciting. You can learn more about one of the books in our review of the best LGBT science fiction!


The Lost Fleet Book Series by Jack Campbell

And finally, the last book in our review is a story that will be told throughout a series of 11 books and it all starts in Dauntless, the first book. You can read more about the first book in our article about the top military science fiction books.

The book starts out with another outstanding war between two deadly enemies. The Alliance and the Syndics.

They have been fighting for centuries and in the middle of that war, you get to meet Captain John Geary as he comes out of a long hibernation and continues his amazing and legendary heroic acts.


Robert Hazley

Robert Hazley

Robert is a science fiction and fantasy geek. (He is also the best looking Ereads writer!) Besides reading and writing, he enjoys sports, cosplay, and good food (don't we all?). Currently works as an accountant (would you believe that?)