Books like 'Delphi Castaways'
Readers who enjoyed Delphi Castaways by Bob Blanton also liked the following books featuring the same tropes, story themes, relationship dynamics and character types.
action / adventure military, war & conflict military aliens invasion first-contact space-fleet exploration space-travel
-
Duchess of Terra by Glynn Stewart
16 ratingsWhen Terra knelt to an alien Imperium They guaranteed our safety and our future But now their enemies are coming for us To preserve humanity’s survival and freedom in a hostile galaxy, Annette Bond tied her world to the A!Tol Imperium, taking on the mantle of Duchess of Terra to rule humanity in the Imperium’s name...Categorized as:
aliens exploration first-contact invasion military space-fleet space-travel action-adventure -
Terra and Imperium by Glynn Stewart
14 ratingsSecrets both ancient and new. Powers great and greater— With Terra caught in the middle Humanity’s first colony is a project neither the Duchy of Terra nor the A!Tol Imperium can allow to fail. The planet Hope in the Alpha Centauri system has been lavished with resources and attention—but when an unknown alien force attacks the system, all of that is in danger...Categorized as:
aliens exploration first-contact invasion military space-fleet space-travel action-adventure -
Darkness Beyond by Glynn Stewart
14 ratingsA newly-founded human colony world burned from orbit A warship squadron of the galaxy’s oldest race ambushed and destroyed An ancient enemy reborn in the darkness beyond the known stars The A!Tol Imperium and their new human subjects have had fifteen years of relative peace. New colonies have been founded, new worlds explored, new ships built...Categorized as:
aliens exploration first-contact invasion military space-fleet space-travel action-adventure -
Firestorm by D.J. Holmes
10 ratingsFour peaceful years have passed since the liberation of Haven. Captain James Somerville has taken his command, the heavy cruiser Titan, to Earth for a much-needed refit. As he is there, shocking news arrives from the American colonies. Unknown ships have attacked a remote colony. Nuclear missiles have devastated the planet’s surface leaving almost no survivors...Categorized as:
aliens exploration invasion military space-fleet space-travel action-adventure adult -
-
Blockade: Age of Expansion - A Kurtherian Gambit Series by Craig Martelle, Michael Anderle
10 ratingsHumanity’s greatest export – Justice. Space is a dangerous place, even for the wary, especially for the unprepared. The aliens have no idea. Here comes the Bad Company. When the Bad Company learns of a human colony blockaded by aliens, they take the upgraded War Axe into battle. Once again, nothing is as it seems, but this time, they find a single enemy, evil to its core...Categorized as:
aliens exploration first-contact military space-fleet space-travel action-adventure adult -
The Colossus by Jay Allan
10 ratingsThe Hegemony strikes again… The Confederation and its allies have won their first victory, retaken their capital from he forces of the Hegemony. But the enemy is not beaten, far from it, and they are back, with an unstoppable weapon, a vast superbattleship, a deadly hybrid of imperial and Hegemony technology, called the Colossus...Categorized as:
aliens exploration first-contact invasion military space-fleet space-travel action-adventure -
The Others by Jay Allan
12 ratingsFrom the deepest darks of unknown space, evil comes… Admiral Tyler Barron and the Confederation navy face a new threat, darker and deadlier than any that have come before...Categorized as:
aliens exploration first-contact invasion military space-fleet space-travel action-adventure -
Delphi League by Bob Blanton
12 ratingsThe Delphineans have to deal with the fact that the Fazullan ship has slaves on it. They repatriate the Paraxean slaves with Mangkator and need to find a planet for the other slaves. But what do they do with the Fazullans? Then Catie takes is assigned the mission to take the Onisiwoens, the third set of aliens, home...Categorized as:
aliens exploration first-contact invasion military space-fleet space-travel action-adventure -
Give No Quarter by Jamie McFarlane
12 ratingsAlternate cover for ASIN B01FQ57I7G can be found here: Give No Quarter Branded criminals and on the run from the most powerful corporation in the known universe, Liam Hoffen and the crew of Hotspur have a simple choice to make...Categorized as:
aliens exploration first-contact invasion military space-fleet space-travel action-adventure -
Junkyard Spaceship by Jamie McFarlane
12 ratingsWhen aliens threaten his country, one grumpy old vet will take the fight to the stars.Albert Jenkins would like nothing more than to putter around his junkyard, selling parts and working on old cars. When an alien spacecraft is shot down by US Air Defense and crash lands on his newly rebuilt home, he’s dragged back into the fight of his life...Categorized as:
aliens exploration first-contact invasion military space-travel action-adventure adult -
Shield of Terra by Glynn Stewart
12 ratingsThe mother, ruler of an entire world Sent to the heart of an old enemy to build a new peace The daughter, officer of a deadly warship Sent to the darkness to find the new enemy hunting them all A dozen inhabited worlds of the Kanzi Theocracy and the A!Tol Imperium are ash...Categorized as:
aliens exploration first-contact invasion military space-fleet space-travel action-adventure -
Direct Fire by Rick Partlow
12 ratingsFrom street criminal to war hero.From outcast to Marine officer.The journey has been a long one, but now it’s reaching the end.Cam Alvarez leads his platoon of Drop-Troopers into the Tahni Imperium, into the final days of the war and the bloodiest battles yet...Categorized as:
aliens exploration first-contact invasion military space-fleet space-travel action-adventure -
Delphi Colony by Bob Blanton, Jessica Gurd
12 ratingsBook 8 of the popular series Delphi in Space. The McCormacks are finally going to start an Earth Colony and the Paraxeans are finally getting a home. Catie is going to the Academy and Marc is going to Artemis...Categorized as:
aliens exploration first-contact invasion military space-fleet space-travel action-adventure -
Delphi Challenge by Bob Blanton, Jessica Gurd
12 ratingsBook 9 of the popular series Delphi In Space Delphi. In it, we find the McCormacks having to defend Artemis from the same Aliens that attacked the Paraxean colony fleet over 70 years before. Follow along as Catie finally graduates from the Academy...Categorized as:
aliens exploration first-contact invasion military space-fleet space-travel action-adventure -
-
Nua'll by S.H. Jucha
12 ratingsThe Omnian expeditionary fleet sails for the faraway place they call “the wall.” The worlds of humankind have consolidated their resources to create a powerful armada to confront the alien federation.During the Omnians’ previous encounter with an alien fleet at the wall, the Nua’ll comm sphere spoke to them in multiple languages...Categorized as:
aliens exploration first-contact invasion military space-fleet space-travel action-adventure -
Delphi Diversion by Bob Blanton
12 ratingsCatie is on her way back to Earth after having settled the Fazulan slaves when the wormhole her ship is traveling in collapses. They are diverted to another system where big chunks are flying around. They rescue a ship and find themselves in the middle of a series of mysteries...Categorized as:
aliens exploration first-contact military space-fleet space-travel action-adventure audiobook -
Rising Force by Ken Lozito
12 ratingsEight months have passed since the Star Shroud barrier was engaged to protect the Earth, but it won’t last, and humanity is scrambling to build a fleet. Cut off from home, the crew of the Athena has taken refuge on the Boxan colony world, a last safe haven for the creators of the Star Shroud...Categorized as:
aliens exploration first-contact invasion military space-fleet space-travel action-adventure -
Alabaster Noon by Chris Kennedy, Mark Wandrey
6 ratingsThe invasion of Earth is a broken dream, a victim of Peepo’s ability to play the long game better than anyone thought possible. With Alexis Cromwell shot in the back by her XO and the fleet in ruins, the Humans have run back to New Warsaw to lick their wounds, but the Merc Guild now knows the location of their hidden base, and they are in hot pursuit...Categorized as:
aliens exploration first-contact invasion military space-fleet space-travel action-adventure -
Race Rivalry by S.H. Jucha
6 ratingsThe sisters’ leader, Miriamal, and three mining chairpersons investigate an unexplored wormhole for possible economic expansion. Aboard the Dominance, they exit the wormhole and are stunned to find the nearby system inhabited. More troubling, technologically advanced warships hold station above the system’s exoplanet... -
Leviathan's Fear: A Military Sci-Fi Series by Craig Martelle
6 ratingsTrapped in Ga’ee space, Leviathan runs for its life.And the lives of its crew.Declan Payne and Harry Wesson decide to go on the offensive. They have no choice.They can’t go home. It only delays the inevitable.The Ga’ee march relentlessly into the space of the seven races while turning an inward eye toward the interloper, the ship they call God1...Categorized as:
aliens exploration first-contact invasion military space-fleet space-travel action-adventure -
The Terran Privateer by Glynn Stewart
16 ratingsEarth is conquered. Sol is lost. One ship is tasked to free them. One Captain to save them all. When an alien armada destroys the United Earth Space Force and takes control of the human homeworld, newly reinstated Captain Annette Bond must take her experimental hyperspace cruiser Tornado into exile as Terra’s only interstellar privateer...Categorized as:
aliens exploration first-contact invasion military space-fleet space-travel action-adventure -
Against All Odds: A Military Sci-Fi Series (Grimm's War Book 1) by Jeffery H. Haskell
7 ratingsThe wrong crew. The wrong ship. The right Captain.Idealistic navy lieutenant Jacob Grimm just wanted to honor his mother’s sacrifice in the last great war. When he’s forced to return fire and destroy a squadron of ships to save his own, he thinks he’s the hero…Until they discover the ships are full of children.Disgraced and denied promotion, Jacob’s career is over...Categorized as:
aliens exploration first-contact invasion military space-fleet space-travel action-adventure -
Siege of Earth by D.J. Holmes
8 ratingsThe Flex-aor invasion fleets have been stopped, but at great cost. Human colonies lie in ruins, fleets have been decimated and the economies of the major space powers have been stretched to breaking point. Yet one nation stands unaffected. Hidden behind their borders, the Russian Space Federation is stronger than ever...Categorized as:
aliens exploration invasion military space-fleet space-travel action-adventure adult -
A.I. Rescue by Vaughn Heppner
8 ratingsDespite being all alone—the only one of his kind—Bast Banbeck has generously helped humanity time and again against the death machines, saving us from extinction. Years ago, Jon Hawkins promised Bast that he would hunt for and save the Sacerdotes in return. But the homesick Bast is losing hope, drowning his sorrows in extended drinking bouts...Categorized as:
aliens exploration first-contact invasion military space-fleet space-travel action-adventure -
-
A.I. Armada by Vaughn Heppner
8 ratingsYears ago, Main 54’s brain-core had to flee his exploding planet-sized warship because of the treachery of Jon Hawkins. Later, Main 54 gained special processors, a new warship—something changed in him…greater clarity of purpose and superior combat skills.He has been taking over the AI Dominion around here ever since...Categorized as:
aliens exploration first-contact invasion military space-fleet space-travel action-adventure -
Conquest by Toby Neighbors
8 ratingsThings are dire for the survivors on Leonis BThe Orrkasi army is focused on only one thing…Finding and killing Staff Sergeant Eli Vanhorn.Since being stranded on the planet Leonis B, Staff Sergeant Eli “Van” Vanhorn has worked tirelessly to protect the people he cares about. But his attacks on the Orrkasi aliens who are working to exploit the planet’s resources have forced his hand...Categorized as:
aliens exploration first-contact military space-fleet space-travel action-adventure book -
A Fiery Sunset by Chris Kennedy, Mark Wandrey
8 ratingsThe Revelations are over, and the war to end all wars has begun. The plot by the Galactic Union’s Mercenary Guild against the Four Horsemen has culminated in an invasion of Earth. Faced with an overwhelming force, the Human mercs had no choice. They’ve fled, leaving Sansar Enkh to go to the Mercenary Guild headquarters on Capital Planet to stand trial for humanity...Categorized as:
aliens exploration first-contact invasion military space-fleet space-travel action-adventure -
Valerie’s Elites: Age of Expansion by Justin Sloan, P.T. Hylton
8 ratingsFighting for her life in a Deathmatch is the perfect cover.It started as a simple intel mission. Then it turned sideways. Valerie goes off mission, trusting her gut and wits more than her physical abilities to get on the inside, to help bring justice to the slaves and the downtrodden. She is, after all, the Justice Enforcer...Categorized as:
aliens exploration first-contact invasion military space-fleet space-travel action-adventure -
Armageddon by Rick Partlow
8 ratingsBook 4 in the next explosive series from the #1 Amazon Bestselling author of Contact Front, Rick Partlow...Categorized as:
aliens exploration first-contact invasion military space-fleet space-travel action-adventure -
Fire Base by Rick Partlow
10 ratingsDeath stalks the edges of human space.Cam Alvarez and Vicky Sandoval have pursued the renegade, Tahni Zan-Thint, to his refuge in the outlaw cartels of the Pirate Worlds. On a planet of endless ocean and volcanic fury, Zan-Thint is coming ever closer to learning the secrets of the ancient alien weapons he’s discovered...Categorized as:
aliens exploration first-contact invasion military space-fleet space-travel action-adventure -
Shadows of the Fall by Glynn Stewart
10 ratingsFifty thousand years ago, the Precursors broke the universe. Now great powers and small alike fight over their wreckage. But in the midst of the chaos, there is a question no one asks… Why?Morgan Casimir, commander of the A!Tol Imperial cruiser Defiant, has seen the works of the Precursor aliens known as the Alava. She has seen their accidents threaten worlds and consume entire star fleets...Categorized as:
aliens exploration first-contact invasion military space-fleet space-travel action-adventure -
Eyes of Tomorrow by Glynn Stewart
10 ratingsAn ancient power unleashed from its prison.Fleets summoned by oaths old and new alike.A rising tide of war that may consume the galaxy!Captain Morgan Casimir’s mission to stop a war has ended in a nightmare. In the heart of an ignored nebula, trapped behind a ring of newborn stars, she has awoken a creature of another time: the horde of biological starships who call themselves the Infinite...Categorized as:
aliens exploration first-contact invasion military space-fleet space-travel action-adventure -
1st to Fight by Rick Partlow
10 ratingsI retired from the USMC, and now I write about space marines. I never thought I’d actually become one. As a sci-fi author with a hit TV show, I have a few ideas about what alien invaders are supposed to look like. In my stories, they’re technologically advanced monsters, with tentacles, and no faces. Turns out I was right about the technology. And about how angry they’d be...Categorized as:
aliens exploration first-contact invasion military space-fleet space-travel action-adventure -
Crusade by Glynn Stewart
10 ratingsA newborn Alliance, forged to stop the destroyers of worldsA potential ally, with secrets hidden by a thousand liesA long-doomed star, whose ruins hold a vital answer...Categorized as:
aliens exploration first-contact invasion military space-fleet space-travel action-adventure -
-
Galactar by Anthony James
10 ratingsFollowing decades of war and the recent catastrophic loss of an entire planet, the Human Planetary Alliance is riven by internal disputes and rivalries. The military’s old guard fights for power against those who see a chance to turn things around.After a series of hard-fought victories, Captain Carl Recker is becoming recognized as a man who gets results - a man who knows how to beat the Daklan...Categorized as:
aliens exploration invasion military space-fleet space-travel action-adventure adult -
Fulcrum Gun by Anthony James
10 ratingsLost in hostile space and pursued by the most powerful warship in the known universe, Captain Carl Recker is losing hope and running out of options. His battleship Fulcrum is no match for this enemy and the Meklon aliens who might have helped him are dead, killed by the Galactar’s murderous weaponry.Somehow, Recker must find a way to succeed where the might of an alien empire already failed...Categorized as:
aliens exploration invasion military space-fleet space-travel action-adventure adult -
Laws of Ancidium by Anthony James
10 ratingsHaving fought his hardest battle, Captain Carl Recker returns to planet Lustre, bringing the alien battleship Fulcrum with him.Recker is under no illusions that he’ll be offered backdated shore leave, but his feet don’t even touch the ground before trouble shows up. A heavily armed fifty-thousand-metre Meklon interstellar drops out of lightspeed near the planet...Categorized as:
aliens exploration invasion military space-fleet space-travel action-adventure adult -
Family Law by Mackey Chandler
10 ratingsPeople love easily. Look at most of your relatives or coworkers. How lovable are they? Really? Yet most have mates and children. The vast majority are still invited to family gatherings and their relatives will speak to them. Many have pets to which they are devoted. Some even call them their fur-babies... -
The Dark Invaders by Raymond L. Weil
10 ratingsFrom USA Today Best Selling Author Raymond L. Weil comes the second book in the Star Cross series. Over fourteen months have passed since Fleet Admiral Kurt Vickers drove the Profiteers from Earth. Eighty million people died while the planet was being ransacked and its wealth stolen. Now a new and deadlier threat comes from intergalactic space...Categorized as:
aliens exploration first-contact invasion military space-fleet space-travel action-adventure -
The Long Voyage of the Little Fleet by Mackey Chandler
10 ratingsIn the first book of this series "Family Law", Lee's parents and their business partner Gordon found a class A habitable planet. They thought their quest as explorers was over and they'd live a life of ease. But before they could return and register their claim Lee's parents died doing a survey of the surface...Categorized as:
aliens exploration first-contact military space-fleet space-travel action-adventure adult -
Refuge by Glynn Stewart
11 ratingsA dying world, shattered by a broken machineA desperate flight, their only hope for refugeA robotic race, ally and destroyer alikeThe Republic of Exilium has grown in strength and confidence at the far end of the galaxy from the rest of mankind, sending out scout ships to survey the worlds around them as they try to learn more about the mysterious Construction Matrix AIs...Categorized as:
aliens exploration first-contact invasion military space-fleet space-travel action-adventure -
Delphi Embassy by Bob Blanton
12 ratingsAfter the Delphi League defeats the Fazullan invasion of Onisiwo, Catie is tasked with managing the Onisiwoen transition to the Delphi League as well as the repatriation of all the slaves from the Fazullan fleet. She has to navigate the complex diplomatic circles as different interests complete for advantage in the new age of interstellar trade...Categorized as:
aliens exploration first-contact invasion military space-fleet space-travel action-adventure -
Genesis by Rick Partlow
12 ratingsFirst contact gone wrong...It was every starship captain’s nightmare, and for Travis Miller, it was his own personal hell. He’d done everything by the book, but when the Tahni had attacked him and his crew, there was no choice but to return fire and destroy the first alien vessel humans had ever encountered...Categorized as:
aliens exploration first-contact invasion military space-fleet space-travel action-adventure -
Relics of Eternity by Glynn Stewart
12 ratingsThe edge of Imperial expansionFar from Earth and the other homeworldsHere lie the secrets of ancient godsHere…there be dragonsSeeking to escape the shadow of Annette Bond’s success, Captain Morgan Casimir has taken a posting on the far side of the A!Tol Imperium. Here, she hopes to begin a legend for herself that stands apart from her stepmother the Duchess...Categorized as:
aliens exploration first-contact invasion military space-fleet space-travel action-adventure -
-
Omnia by S.H. Jucha
12 ratingsAlex Racine, who led an elite group of humans and SADEs (self-ware digital entities), left the newly discovered planet of Celus-5 under difficult circumstances. Few of the Harakens with Alex thought there was little he could do to bring peace to the embroiled planet...Categorized as:
aliens exploration first-contact invasion military space-travel action-adventure adult -
Celus-5 by S.H. Jucha
12 ratingsFor the Sojourn’s initial mission, the Haraken explorer ship undertakes the investigation of Celus-5, a world identified by Willem, a SADE (self-aware digital entity), and his team of scientists, as the best prospect for a new colony.What should be a routine survey mission becomes a disaster. To the Harakens’ surprise, they discover, not one, but two alien species engaged in conflict...Categorized as:
aliens exploration first-contact invasion military space-travel action-adventure adult -
Fracture by Ken Lozito, Scott Aiello
12 ratingsColonel Sean Quinn is stranded in another universe, along with two thousand people under his command. They've been hiding from the enemy long enough, now it’s time to return home. Outnumbered against a superior foe, Sean must risk everything in a daring operation, but the mysterious enemy has a few surprises of their own...Categorized as:
aliens exploration first-contact invasion military space-fleet space-travel action-adventure -
Exile by Glynn Stewart
13 ratingsA shackled Earth, ruled by an unstoppable tyrantAn exiled son, and a one-way trip across the galaxyA perfect world, their last hope for survivalVice Admiral Isaac Gallant is the heir apparent to the First Admiral, the dictator of the Confederacy of Humanity. Unwilling to let his mother's tyranny stand, he joins the rebellion and leads his ships into war against the might of his own nation...Categorized as:
aliens exploration invasion military space-fleet space-travel action-adventure adult -
Voyage Into Darkness by D.J. Holmes
6 ratingsEarth has been liberated. Humanity has been set free. Yet the threat of the Elder Empire still looms large. If Earth is going to stand against the Elder's retaliation, she cannot do so alone. One place holds out hope for humanity. Unexplored space. Outside the borders of the Elder Empire the possibilities are endless...Categorized as:
aliens exploration invasion military space-fleet space-travel action-adventure adult -
Star Force: Symbiosis by Aer-ki Jyr
6 ratingsWith the long-anticipated arrival of the Founders in the Temples, Star Force's future will change drastically, one way or another. The time of anonymity is ended. Extra-galactic contact has finally arrived...Categorized as:
aliens exploration invasion military space-fleet space-travel action-adventure adult
Or - use our amazing romance book finder to get recommendations based on your favorite content tropes and themes. Mix and match at will.