2021 Military Sci-Fi Novels That Will Blast You Away!

If there's anything we know about the Discover Sci-Fi community, it's that y'all absolutely love your military sci-fi. So we did a scan of some of the new military sci-fi books launching or recently launched in 2021 for you to add to your TBR list. Enjoy!


Green World by B.V. Larson 

Release Date: May 28th, 2021

Rebels build a secret base on Green World. Their plan is to attack Earth and retake all the planets the Humans have conquered.

Hegemony starships gather to strike the Rebels first, but where is their base? As the fleets search, Earth warships trespass into Skay space igniting a fresh border conflict between rival Galactics.

When James McGill stumbles onto the rebel camp, they’re forced to step up their plans. The world goes up in flames. Friends are permed and cities are destroyed as everything spins out of control.

Read Green World here on Amazon. Also available on audiobook.


Jack Four by Neal L. Asher

Release Date: June 10, 2021

Created to die–determined to live . . .

Jack Four–one of twenty human clones–has been created to be sold. His purchasers are the alien prador and they only want him for their experimentation program. But there is something different about Jack. No clone should possess the knowledge that’s been loaded into his mind. And no normal citizen of humanity’s Polity worlds would have this information.

The prador’s king has been mutated by the Spatterjay virus into a creature even more monstrous than the prador themselves. And his children, the King’s Guard, have undergone similar changes. They were infected by the virus during the last humans-versus-prador war, now lapsed into an uneasy truce. But the prador are always looking for new weapons – and their experimentation program might give them the edge they seek.

Suzeal trades human slaves out of the Stratogaster Space Station, re-engineering them to serve the prador. She thinks the rewards are worth the risks, but all that is about to change. The Station was once a zoo, containing monsters from across known space. All the monsters now dwell on the planet below, but they aren’t as contained as they seem. And a vengeful clone may be the worst danger of all.

Read Jack Four here on Amazon.


Boundless (The Lost Fleet: Outlands Book 1) by Jack Campbell

Release Date: June 15th, 2021

Geary believed in the Alliance. Even when he uncovered overwhelming evidence that the highest echelons of the government and fleet command were involved in secret programs and prison camps, he believed it was worth saving. And that his duty was to see that justice was served even though some factions feared that revealing the truth would cause the Alliance to crumble.

But after narrowly surviving two assassination attempts when he brings evidence of the misdeeds to the capital star system, Geary realizes that some have decided the easiest way to make the Alliance's problems go away is to get rid of him. He finds himself ordered to undertake a perilous new mission outside of the reaches of human-occupied space while the Senate clashes over the evidence.

Geary's warships must escort a diplomatic and scientific mission across the dangerous, disintegrating remnants of the Syndicate Worlds empire. But even if he can make it to Midway Star System, the gateway to alien-controlled space, Geary will face former Syndicate officials who have rebelled and regard the Alliance with deep suspicion. And that will be the easy part. . . 

Get your copy of Boundless here on Amazon. Also available on audiobook.


Impulse by Ken Lozito

Release Date: August 3rd, 2021

Over the years, Connor has pieced together evidence of a mysterious group of aliens who roamed the multiverse and have been to New Earth.

Setting off to make new discoveries about them is straightforward enough, but this is New Earth, and Connor Gates has a knack for finding trouble.

For over twenty years, Connor and Diaz have been friends. They’ve survived two wars and have seen the best and the worst of each other. When a terrorist attack takes the life of Diaz’s son, their friendship will be pushed to the breaking point.

To find who is responsible, Diaz is willing to cross as many lines as it takes. Connor will do everything he can to protect his friend, even from himself. It’ll take everything he’s got to find who is responsible while preserving a peaceful coexistence with New Earth’s inhabitants.

Sometimes protecting your friends is a lot tougher than fighting your enemies.

Read Impulse here on Amazon.


Citadel by Marko Kloos

Release Date:August 10th, 2021

The war should have been over. But it’s not for a group of nationalists grabbing for control.

It’s been two weeks since a missile with a nuclear warhead tore through the planetary defenses in the most blistering large-scale attack ever committed in the history of the Gaia system. Commander Dunstan Park of the Rhodian navy has been handpicked to command an experimental cruiser that could dictate the course of the escalating conflict. All he has to do is keep the ship from falling into the wrong hands.

On Gretia, the powder keg is beyond control. A terrorist attack against civilians draws Idina Chaudhary into a costly battle. It also forces a cautious Aden Jansen back into the fray. Now dedicated to a just cause, he’s still keeping his past hidden. The risk of exposing his former alliance could twist not only his fate but also that of his sister, Solveig, heir to the family empire.

With no time to waste, Dunstan hits the ground running. But as insurgents threaten the unstable peace, what’s ahead for both sides could change the destiny of the Gaia system forever.

Grab Citadel here on Amazon. Also available on audiobook.


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Leviathan by Nick Webb

Release Date: September 11th, 2021

Earth has fallen to the Findiri, and the resistance to their rule led by Admiral Shelby Proctor is scattered across the galaxy.

Controlled by the Quiassi who calls himself Abraham Haws--Captain Granger's old friend and XO--the Findiri unleash a storm of destruction as they hunt down Granger, their creator, and seek to end the resistance to their rule.

But a single surviving Swarm ship has returned from their universe, threatening all sentient life in the galaxy and making the defeat of the Findiri all the more urgent, for if the surviving Swarm gets their way, the very existence of the universe is at stake.

All races and worlds gather--human, Dolmasi, Skiohra, Valarisi, Eru, and Itharan, to confront the Findiri, and make one last stand against their mortal enemy: the Swarm, which seeks the end of all life, across all universes and existence.

Get your copy of Leviathan here on Amazon.


Release Point (Drop Troopers Book 8) by Rick Partlow

Release Date: September 14th, 2021

It's the final showdown between Cam and a rogue Tahni general... And it might be the end of everything.

Cam and Vicky are chasing down Zan-Thint to his last fortress, a lifeless world deep in Tahni space. If they can't take him down before he activates an ancient alien weapon, a swarm of biomechanical killing machines will wipe out all life in the Commonwealth.

But devastating his enemies is only half of Zan-Thint's plan. He doesn't do anything without an escape route.

And this one will take him--and Cam Alvarez--clear out of the galaxy.

Dive into Release Point here on Amazon.


The Omega Protocol (Cade Korbin Chronicles Book 4) by Jasper T. Scott

Release Date: September 23rd, 2021

CHAOS IS COMING…
After defeating Nadine Zabelle and tricking her into paying him a handsome sum, Cade Korbin finally has more credits than he knows how to spend. In addition, he has the alien entity known as Alpha and the power of the swarm on his side. Finally, things are going his way.

Cade decides to leverage his good fortune to start his own guild: the Templar, dedicated to hunting the galaxy’s crime lords and all of the corrupt authorities that shelter them.

But meanwhile, tensions are simmering along the border between the Alliance and the Coalition. A cease fire was declared, but both sides are bitterly licking their wounds.

Cade learns of a dangerous operation, code-named “The Omega Protocol”, which entails using the Priors’ Gateway to travel to the future and bring back a weapon that could win the war.

Having used the Gateway before, Cade knows that time travel is like a snake eating its own tail, and Alpha has already warned him that there is another entity like him lurking in the future, one whose only goal is to cause chaos and destruction.

In order to stop The Omega Protocol, Cade must cut a deal with the very enemies he sought to eradicate. Together, they must destroy the Gateway before it can be used to usher in a dark age the likes of which the galaxy hasn’t seen since the Priors mysteriously disappeared.

Get your copy of The Omega Protocol here on Amazon.


The Last Shadow by Orson Scott Card

Release Date: October 19th, 2021

One planet.

Three sapient species living peacefully together.

And one deadly virus that could wipe out every world in the Starways Congress, killing billions.

Is the only answer another great Xenocide?

Start reading The Last Shadow here on Amazon. Also available on audiobook.


Halo: Divine Wind by Troy Denning

Release Date: October 19th, 2021

An original novel set in the Halo universe—based on the New York Times bestselling video game series!

October 2559. With the galaxy in the suffocating grip of a renegade artificial intelligence, another perilous threat has quietly emerged in the shadows: the Keepers of the One Freedom, a fanatical and merciless Covenant splinter group, has made its way beyond the borders of the galaxy to an ancient Forerunner installation known as the Ark. Led by an infamous Brute named Castor, the Keepers intend to achieve what the Covenant, in all its might, failed to: activate Halo and take the last steps on the path of the Great Journey into transcendence.

But unknown to Castor and his new, unexpected ally on the Ark, there are traitors to the cause in their midst—namely the Ferrets, composed of Office of Naval Intelligence operative Veta Lopis and her young team of Spartan-IIIs, who have been infiltrating the Keepers to lay the groundwork for Castor’s assassination. But with ONI’s field operations now splintered and cut off by the Guardian threat, Veta’s original mission has suddenly and dramatically escalated in scope. There’s simply no choice or fallback plan—either the Ferrets somehow stop the Keepers or the galaxy faces an extinction-level event….

Grab In the Halo: Divine Wind here on Amazon.



Which of these military sci-fi releases will make their way into your (e)bookshelf? Which ones are you most excited for? Let us know here in the comments, or over in the Discover Sci-Fi Facebook group! 

*All book-related copy in this post was pulled from Amazon, Goodreads & Wikipedia, unless otherwise credited.

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