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Publisher's Summary

Earth's Star Force Marines invade an alien world!

In the second book of the Star Force series, Kyle Riggs has another bad year. The Nano ships have a new mission - one that sentences their pilots to death. Meanwhile, the governments of Earth want to steal Star Force's Nano technology for their own. Worst of all, Earth has made a promise to the Macros, and the machines are coming to collect.

Extinction is the story of Earth's entry into an interstellar war between living creatures and machines. And to buy the peace, we've signed up with the machines.

Battle stations! Listen to another Star Force novel.
©2011 B. V. Larson (P)2011 Audible, Inc.

What members say

Average Customer Ratings


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Much less than it could have been

This is the seconds book in the Larson's Star Force series. I liked the direction the first book took, I thought there were some interesting things the series could explore and decided to ignore the problems with the first book and see where the second book went. Well now I know, we went to lazyville. Lawson must have written this book in about a week. The plot is silly, the characters are flat and the science has left the building.

Very sad, this could have been a very interesting series. I think Larson has the ability to write a much better book. But for some reason he just seems to be cranking out these books like cheap romance novels. Maybe that is how a writer needs to pay the bills these days - Volume. I think there are about another 9 books in this series, but I am in no hurry to read the rest.

On the brighter side, Mark Boyett did a great job narrating the book!

13 of 15 people found this review helpful

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The Kyle Rigs Show

Kyle Rigs is special. He's the sort of hero who knows better than everyone, about pretty much everything. If an officer gives an order, he'll countermand it. Sure hell do the same thing later, but he's Riggs. He's so smart that he's not only better than anyone else to run the new tech, he's better than all other people combined. These are the glaring and reoccurring things. Leave aside failing to remember little bits of science like inertia. That's okay, he's The Riggs and not bound by foolish things like planning, military disciple, or a rudimentary appreciation of self replicating factories. Thinking and behavior that could be excused in the surprise and crisis of the first book continue on a larger and more costly scale.

34 of 41 people found this review helpful

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Too much Superhero

What disappointed you about Extinction?

The first book was really good, but in this one, Kyle Riggs was a little too great. This guy does everything but leap tall buildings.

Any additional comments?

I doubt that I will read anymore in this series.

9 of 11 people found this review helpful

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What a waste of time!

Really? Book one wasn't that bad but book 2 was horrible. I kept hoping it would get better but it never did. Everybody on the planet is an idiot except for the main character who knows everything about everything. And his girlfriend???? Was there ever a more annoying character? Jarjarbinks I guess would be the only one who could top her.

2 of 2 people found this review helpful

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Rip AND Roaring

This series so far hasn't sent me into periodic episodes of deep contemplation and introspection, but it HAS provided one helluva lot of fun. So long as you don't try to think too deeply about various premises and events and just go with it, you're in for some quality, good ol' SF entertainment.

2 of 2 people found this review helpful

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Enjoyable Scifi, Marines in space.

I think there are a lot of interesting ideas and concepts. I enjoy this series, but it is not one that I wait all year for the next one like the destroyermen and lost fleet series'.
Also I find the commander's girlfriend very annoying. Obviously the author identifies with his hero so he gave him a beautiful 23 year old bimbo with a great body and limited brains, that loves sex, for his companion.
I could really do without that character.
Some of the other characters are really great characters. I love Jack and the general. Most of the others just are placeholders for the story with no depth.
The story is really the star of the books.with many twists and surprises. The technology is interesting and The books keep my interest, but I don't think I will re read the series when the next one comes out as I do with the In Death series or the destroyermen books.

Good, enjoyable, worth the credit but forgettable afterwards. not 5 stars

14 of 18 people found this review helpful

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  • Takudza
  • Point Cook, Australia
  • 09-16-12

Very Middle of The Road

Would you try another book from B. V. Larson and/or Mark Boyett?

The narrator sounds a lot like Brian Cranston from Breaking Bad. Not that that is a bad thing or anything that is just how Kyle Riggs looks like to me now. I would definatley try the next book in the series just to finish the series but it did not blow me away.

Would you recommend Extinction to your friends? Why or why not?

No my friends don't like sci fi so if wanted to get them hooked i would not recommend this one.

What three words best describe Mark Boyett’s voice?

Heisenberg Breaking Bad

Did Extinction inspire you to do anything?

Yes get The Lost Fleet series

Any additional comments?

The story didn't blow me away and just getting the main character's perspective is getting old. I would love to have seen the humans attack from the the eyes of one of the aliens they went up against.

4 of 5 people found this review helpful

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  • Solomon
  • Los Angeles, CA, United States
  • 02-08-13

This Book Turns My Stomach!

The first book in this series was reasonably good. It was told from the standpoint of a guy who was put in a new situation, and how he reacted. But this second book is just ridiculous. The more I listened to it, the sicker I got.
The lead character is an arrogant, egotistical, selfish know-it-all and his girlfriend is a sex-crazed bimbo.
- How does some college professor all of a sudden have total control of the world's most dominant military force? Because he found it first?
- With all of the brilliant minds and governments all over the world, how does this guy speak for all of mankind and make deals on its behalf?
- How does he alone design star ships and tanks with no knowledge of industrial design? How arrogant is he to think he couldn't use the help of qualified engineers the world over?
- Why would seasoned military veterans follow him?
- How does he go to planets no one has ever seen and take no scientists with him, only vowing to "take tons of pictures for the spooks back home?"

His girlfriend is even worse. He says he loves her, but she has no redeeming qualities whatsoever. She's a whiny, complaining, possessive sidekick whose only asset seems to be her sexual prowess.

I've listened to more than 500 books on Audible, and I have never had a book affect me in this way. The sheer arrogance of a person who takes alien technology and keeps it for himself and from his country, essentially proclaiming himself the head of his own little nation. It's just sickening.

32 of 46 people found this review helpful

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Disappointing for a sequel

In the the first Star Force, Larson created a credible tale of unknown alien technology and AIs sent to Earth to assist in a battle against a machine intelligence ready to invade and conquer. Our intrepid hero, Kyle Riggs saved the day by deciphering the alien technology and developing various successful attack modes. In the end, Kyle negotiated a truce with the promise of thousands of nano-enhanced human soldiers fighting as mercenaries for their previous enemy.

In the latest installment, Kyle must first deal with Earth governments that now with the removal of the alien threat, have decided to return to their historical roles of infighting. Kyle is determined to fulfill his duty of human mercenaries and proceeds to build an army.

Rather than attempt to double-cross the aliens, Kyle leads this army into battle against an unknown planet in an unknown star system with worm-like intelligent life. There is much musing and philosophical hand wringing about biota fighting biota, rather than teaming up to battle the machines, but Kyle has dug himself such a deep hole, he has little choice but to practice genocide on the first biological alien species that Earth encounters.

Overall, the battles are boring and mundane with a totally unsatisfying ending. Traveling through wormholes to stab a worm is hardly the stuff of interstellar sci-fi battles. It's likely that Kyle will return to an even more messed up Earth with the only conclusion that both machine and human intelligence are not fit for existence in the universe.

If there is a book 3, the universe would be better if the machines took over and put Kyle out of his and readers' misery.

16 of 23 people found this review helpful

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The story is OK, but something is missing. The main character's personality changes significantly even though Star Force #2 picks up immediately where Star Force #1 it left off. Riggs goes from being a creative computer science professor to an arrogant commander, physics guru and master astronomer without explanation.

The book is like eating Taco Bell at 3:00am, you regret the engagement after the first bite, but decide you might as well finish.

Could have been worse.

1 of 1 people found this review helpful

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  • david
  • 12-31-17

little bit of the same

still a good read but a little repetitive and getting a little annoying. He can be very clever and other time too stupid

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  • Martyn. R. Winters
  • 12-06-17

Pretty poor stuff

This was a very disappointing novel, especially after the promise of the first in the series. I guess a lot of the problems I have with it is the outdated concept of AI employed by the author, which rather dates the story. The characters are all pretty unintelligent as well, with superficial motivations and shallow characters. Not recommended.

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  • Innes Williams
  • 06-08-17


It was a good story, as good as the first. Less sophisticated and more action with a lot of violence. The one main problem is the lack of care showed for the marines dying on the battlefield. Overall it as a more action-packed with one main fight drawn out, yet still very entertaining.

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  • J
  • 06-08-16

enjoyable not as good as the first

enjoyable and didn't have to think too much.would recommend if you enjoy SciFi then give it a go

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  • Mr
  • 09-28-15

great book.

Excellent 2nd book. What does book three have installed for readers. Good Read. next book.

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  • se
  • 09-23-15

Not as good as the first

Would you say that listening to this book was time well-spent? Why or why not?

Yes. Relaxing and interesting.
Most of the time looking forward to what comes next.
Some of the characters becoming predictable, hopefully the 'girlfriend' gets killed off quite quickly!

What does Mark Boyett bring to the story that you wouldn’t experience if you had only read the book?

Accents for characters interesting. Some good, but some comically awful, especially the rather dubious ship voice.

Was Extinction worth the listening time?

Yes, not as good as the first but willing to give the third a try.

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  • S. Morris
  • 09-21-15

Better Than The First In The Series

I was in two minds whether to read this second book in the Star Force series
after my rather ambivalent feelings regarding the first. however, I tend to
give a first book in any series the benefit of the doubt if I'm not sure and
so I purchased Star Force: Extinction to see if this series is worthy of
continuing with. Don't get me wrong, I really like B V Larson's writing when
I first came across his work in the Undying Mercenaries series but was a
little under whelmed with the first book in the Star Force series in overall
terms despite its promising beginnings.

The second instalment of this series picks up directly where the first left
off seeing our protagonist, Kyle Riggs, having negotiated a truce with the
Macro's and now wondering just how he is going to deliver on that. This
story is really a book of two halves as it were in story terms. The first
part is very much like the first in terms of much of the key elements being
present. I was becoming more and more hopeful that the irritating character
of Crow would finally be expunged from this series until he makes an
annoying re-appearance in chapter 11. The Sandra character is still pretty
much just a sex object for Riggs and it seems whenever he's with her that he
cannot think of much else but ogling her or having sex. In the best of
circumstances this might be more understandable but there are several
instances where Riggs remarks on her shapely form etc after having fought
for his life! Kind of strange to me but hey, what do I know, I've never been
in combat.

Where this book redeems itself is in the second act that sees Riggs and
company deliver on their deal with the Macros and head off to parts unknown
to fight for their new machine task masters. This is where Larson excels in
his depiction of strange alien worlds that have different types of stars
shining in their skies than the yellow stars like our own Sol. Further,
unlike a lot of pulp science fiction where the gravity on alien planets
always seems to be the same as Earth's we find our Nano enhanced Marines
land upon an alien world that is almost twice the gravity of our Earth, an
unbreatheable atmosphere and a red giant star for a sun. The indigenous life
too are anything but humanoid and pose a formidable adversary to the Riggs'
ground pounders. Brutal and visceral fighting takes place and this is where
Larson always manages to deliver as he does in the Undying Mercenaries

We also find that the Macros appear to have some exotic faster than light
speed travel technology which is depicted in an unusual way I thought
interesting. Not entirely original, of course, but a different
implementation that is not space based.

Just a couple of minor plot anomalies I noticed in this story. The first was
that it was stated that the language used by the Nanos and Macros was
basically the same and yet in the first book Riggs had to do quite a bit of
work to decode the language as his Nano ship had evidentially not been able
to translate it. The second thing comes near the closing stages of the book
where a character called Sloane is injured in his tank and has compound
fractures to his legs as I recall. However, in just a few minutes he appears
to be able to run along with a Nano filament without any difficulties. I
know that Nano troops have a much faster healing ability than unmodified
humans but this seems to me to be an error from Larson. As ever though, such
minor observations do not affect my enjoyment of this story in the least.

If the second part of this book is now the pattern for forthcoming stories
in this series then I am going to be reading more of these books. If you
were unsure, like me, after reading the first book in this series then I can
recommend this one as I found it a much better and satisfying read than the

I can see that Larson does appear to have gotten much of his inspiration for
this and his undying Mercenaries combat narrative from the Starship Troopers
movie. There was a line in this book that I had heard in the aforementioned
film where Riggs tells a nervous officer that he has the job now until he
dies or is replaced by someone better or words to that effect. I like this
influence as it makes for a fairly rare breed of science fiction that isn't
afraid to get down and dirty and avoid being overly cerebral.


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  • RP.
  • 07-15-15

Let down by 2-d, stereotypical characters

Would you say that listening to this book was time well-spent? Why or why not?

The sense of adventure is well captured but, as I say in the headline, it's let down by two dimensional characters; in particular Sandra's character; she is written as nothing more than an object of the main character's sexual desire. In fact, so far, the first and second volumes of the 'Star Force' have been passively misogynistic.

Would you be willing to try another book from B. V. Larson? Why or why not?

Hmmm. Maybe. I'd like to see how the story pans out but as the character interaction is simplistic and the misogyny irritating. I doubt these themes will change throughout the series so I'm not sure I'll bother. There's plenty more (and better) sci-fi in the sea...

What aspect of Mark Boyett’s performance might you have changed?

Sometimes his dialogue between the main character and Sandra is just outright creepy; I lost count of the amount of time I cringed. But then, this could be down to the writer, so, hey, possibly not Mark Boyett's fault and perhaps the best anyone could have done with the material.

Do you think Extinction needs a follow-up book? Why or why not?

It has one.

Any additional comments?


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  • Smudger444
  • 05-09-15


This is a great following story in the series. longer than previous books and so worthy of a 5star review. on to the next.

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  • Damon Birch
  • 01-04-15

loved it

great story. looking forward to reading the next book in the series. it's simple easy to follow but great plot

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  • Katy
  • 09-15-15

action packed Sci Fi

fast paced griping and very imaginative Sci Fi points of view. Great to listen to and author that doesn't feel the need to fill his text with blasphemy and foul language