Best Book Series for Adults Sci Fi (2026): 5 Series Compared

The best book series for adults sci fi starts with the genre’s foundation stones: Foundation, Dune and Ender. We compared five sci-fi book series by scope, the books included, the editions and the publishers, using only what each listing publishes.

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The picks

#	Product	Shelf Score	Buy
1	Foundation 3-Book Boxed Set	9.7/10	Buy
2	Dune Saga 3-Book Boxed Set	9.7/10	Buy
3	Ender's Game (Ender Saga 1)	9.7/10	Buy
4	The 5th Wave Collection	9.6/10	Buy
5	Renegades Series 3-Book Box Set	9.6/10	Buy

1

Foundation 3-Book Boxed Set

Isaac Asimov·9.7/10 Shelf Score

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The Shelf Score runs from 9.2 to 9.8 and weighs fit for the reader or goal (35 points), contents and edition (25), value (25) and listed reading age or level (10, where the listing gives one), using only what the book listing states. How we pick ›

The original Foundation trilogy in a boxed set.

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Pros

• Original trilogy: Foundation, Foundation and Empire, Second Foundation
• 816 pages in the set
• Del Rey publisher, 2022

Cons

• No warranty is stated
• No quality standard is stated
• No award claim in the listing

2

Dune Saga 3-Book Boxed Set

Frank Herbert·9.7/10 Shelf Score

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The Shelf Score runs from 9.2 to 9.8 and weighs fit for the reader or goal (35 points), contents and edition (25), value (25) and listed reading age or level (10, where the listing gives one), using only what the book listing states. How we pick ›

The first three Dune novels in a boxed set.

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Pros

• First three Dune novels together
• Premium mass market boxed set
• Ace publisher, 2020

Cons

• No warranty is stated
• No quality standard is stated
• No award claim in the listing

3

Ender's Game (Ender Saga 1)

Orson Scott Card·9.7/10 Shelf Score

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The Shelf Score runs from 9.2 to 9.8 and weighs fit for the reader or goal (35 points), contents and edition (25), value (25) and listed reading age or level (10, where the listing gives one), using only what the book listing states. How we pick ›

The award-winning first book of The Ender Saga.

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Pros

• 1985 Nebula and 1986 Hugo winner
• Book 1 of 6 in The Ender Saga
• 256 pages, 4th edition

Cons

• No warranty is stated
• No quality standard is stated
• Single novel, not a boxed set

4

The 5th Wave Collection

Rick Yancey·9.6/10 Shelf Score

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The Shelf Score runs from 9.2 to 9.8 and weighs fit for the reader or goal (35 points), contents and edition (25), value (25) and listed reading age or level (10, where the listing gives one), using only what the book listing states. How we pick ›

The 5th Wave trilogy in a 3-book boxed set.

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Pros

• 3-book collection for binge reading
• Boxed set of the full series
• Speak publisher, 2017

Cons

• No warranty is stated
• No quality standard is stated
• No award claim in the listing

5

Renegades Series 3-Book Box Set

Marissa Meyer·9.6/10 Shelf Score

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The Shelf Score runs from 9.2 to 9.8 and weighs fit for the reader or goal (35 points), contents and edition (25), value (25) and listed reading age or level (10, where the listing gives one), using only what the book listing states. How we pick ›

The Renegades trilogy in a 3-book box set.

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Pros

• 3-book paperback box set
• Superhero and supervillain story
• Square Fish publisher, 2021

Cons

• No warranty is stated
• No quality standard is stated
• No award claim in the listing

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Compare the picks

Book details as published on each listing, collected 18 October 2026.

How we scored them

Each series gets a score from performance (scope and awards), build (edition and print length), value (what the listing includes) and the standard checks. None of the five state a warranty or a quality standard. How we pick explains the weights.

Scores run from 9.2 to 9.8: each book’s point total is placed on that range, so more points always means a higher score. Reading age or level counts on a list where at least one listing gives one, and a book whose listing gives none then scores zero on it. Where no listing gives one, the score is taken over the other 85 points. Books carry no warranty, so warranty is not scored.

How to choose the best book series for adults sci fi

Single novel or boxed set

Ender’s Game is book 1 of a 6-book series. Dune, Foundation, The 5th Wave and Renegades are boxed sets of 3 books each.

Awards

Ender’s Game won the 1985 Nebula and 1986 Hugo awards. The listings make no award claim for the others.

Pages

Foundation’s set is 816 pages; Ender’s Game is 256 pages; the others state no page count. For fantasy series, browse fantasy books.

Before you buy

• For a series, buy Book 1 first and confirm the series number on the listing.
• Check the publisher and edition: Ender’s Game is the 4th edition from Tor Trade.
• The listings state no warranty or quality standard for any of the five.
• Renegades has a stated reading age of 12+.

Frequently Asked Questions

Which series won awards?

Ender’s Game: the 1985 Nebula and 1986 Hugo.

Which are boxed sets?

Dune, Foundation, The 5th Wave and Renegades.

Which has the most pages?

Foundation: 816 pages.

Still deciding? Our top pickFoundation 3-Book Boxed Set

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Related lists

See every fantasy books list and all fiction books lists.

More lists: browse best fantasy books for adults series and fiction books.