And that’s a wrap, folks! 

A massive shout-out to everyone who participated in the Discover Sci- Fi 2023 Readers’ Choice Awards. Your nominations and votes were the driving force behind determining the hottest sci-fi reads of the year. 

The suspense is over and we’re thrilled to unveil the ten standout titles that emerged as favourites. Eager to discover which sci-fi gems made the cut according to readers worldwide? Scroll on to dive in! 

*You can also see the top Sci-Fi Audiobooks of 2023 list here, and the top LitRPG of 2023 list here.

10. Omega Force: Dead Reckoning by Joshua Dalzelle

Mercenary life is hard.

No home. No family. Always looking over your shoulder, likely for the rest of your life.

When you find a crew that you can trust, you do anything for them. Jason Burke has a crew like that. He would kill for them… and he would die for them. Right now, they need his help and it will take all of his cunning and skill to bring them home safely. He is alone, without his powerful ship, the Phoenix, and the criminal cartels he’s going up against are some of the most ruthless in the galaxy.

For Captain Burke it’s all or nothing: bring his friends home safe… or die trying.

Grab Dead Reckoning here in on Amazon. Also available in on audiobook.

9. The Ferryman by Justin Cronin 

Founded by the mysterious genius known as the Designer, the archipelago of Prospera lies hidden from the horrors of a deteriorating outside world. In this island paradise, Prospera’s lucky citizens enjoy long, fulfilling lives until the monitors embedded in their forearms, meant to measure their physical health and psychological well-being, fall below 10 percent. Then they retire themselves, embarking on a ferry ride to the island known as the Nursery, where their failing bodies are renewed, their memories are wiped clean, and they are readied to restart life afresh.

Proctor Bennett, of the Department of Social Contracts, has a satisfying career as a ferryman, gently shepherding people through the retirement process—and, when necessary, enforcing it. But all is not well with Proctor. For one thing, he’s been dreaming—which is supposed to be impossible in Prospera. For another, his monitor percentage has begun to drop alarmingly fast. And then comes the day he is summoned to retire his own father, who gives him a disturbing and cryptic message before being wrestled onto the ferry.

Meanwhile, something is stirring. The Support Staff, ordinary men and women who provide the labor to keep Prospera running, have begun to question their place in the social order. Unrest is building, and there are rumors spreading of a resistance group—known as “Arrivalists”—who may be fomenting revolution.

Soon Proctor finds himself questioning everything he once believed, entangled with a much bigger cause than he realized—and on a desperate mission to uncover the truth.

Get your copy of The Ferryman here on Amazon. Also available on audiobook.

8. Lords of Uncreation by Adrian Tchaikovsky

From the Arthur C. Clarke award-winning author of Children of Time, this third and final novel in an extraordinary space opera trilogy depicts humanity on the brink of extinction—and reveals how one man's discovery will save or destroy us all.

Get your copy of Lords of Uncreation here on Amazon. Also available on audiobook.

7. A Grimm Decision: Grimm's War Book Six by Jeffery H. Haskell

6. Infinity Gate by M. R. Carey

INFINITY IS ONLY THE BEGINNING.

The Pandominion: a political and trading alliance of a million worlds. Except that they’re really just one world, Earth, in many different realities. And when an A.I. threat arises that could destroy everything the Pandominion has built, they’ll eradicate it by whatever means necessary.

Scientist Hadiz Tambuwal is looking for a solution to her own Earth’s environmental collapse when she stumbles across the secret of inter-dimensional travel, a secret that could save everyone on her dying planet. It leads her into the middle of a war on a scale she never dreamed of. And she needs to choose a side before every reality pays the price.

Grab Infinity Gate here on Amazon. Also available on audiobook.

Like what you're reading?

If you're enjoying our year end Readers' Choice Roundup, why not join the DSF community for more awesome content? You'll get to be notified whenever a top 10 list or any other articles of interest go up on our site. It's free to sign up and you'll also get recommendations for new releases and discounted ebooks from our expert editorial team, from bestsellers to hidden gems.

5. Theft of Fire: Orbital Space #1 by Devon Eriksen 

At the frozen edge of the solar system lies a hidden treasure which could spell their fortune or their destruction—but only if they survive each other first.

Marcus Warnoc has a little problem. His asteroid mining ship—his inheritance, his livelihood, and his home—has been hijacked by a pint-sized corporate heiress with enough blackmail material to sink him for good, a secret mission she won’t tell him about, and enough courage to get them both killed. She may have him dead to rights, but if he doesn’t turn the tables on this spoiled Martian snob, he’ll be dead, period. He’s not giving up without a fight.

He has a plan.

Miranda Foxgrove has the opportunity of a lifetime almost within her grasp if she can reach it. Her stolen spacecraft came with a stubborn, resourceful captain who refuses to cooperate—but he’s one of the few men alive who can snatch an unimaginable treasure from beneath the muzzles of countless railguns. And if this foulmouthed Belter thug doesn’t want to cooperate, she’ll find a way to force him. She’s come too far to give up now.

She has a plan.

They’re about to find out that a plan is a list of things that won’t happen.

Get your copy of Theft of Fire here on Amazon. 

4. Hell Divers XI: Renegades by Nicholas Sansbury Smith

The secret location of the Vanguard Islands is no longer a secret . . .

Tired from years of fighting, Xavier passes the crown to a younger Hell Diver, Kade Long, and then sets off on the Sea Wolf with Magnolia to find Michael and his family. But the journey will push them both to their limit.

On the damaged airship Vanguard, Michael and crew are running out of water and must dive to a new location before attempting the perilous voyage across the Atlantic to a new home.

Back at the Vanguard Islands, King Kade hurries to prepare the rigs’ defenses against the Forerunner and his Knights of the Coral Castle. Fearing that X won’t return with the airship in time, Kade sends the elite Barracudas on a mission to find an aircraft that will give the Islands a fighting chance against the knights.

Grab Hell Divers XI: Renegades here on Amazon. Also available on audiobook.

3. Aeon Burn by Matthew Mather with Dale M. Nelson

A week ago, the supernova Aeon detonated in the skies over Antarctica. Mass migrations of humanity and animal life began northward. Secondary bursts of ionizing radiation knocked out worldwide power grids. Global temperatures spiked. Oceans rose as seawater expanded and glaciers melted. Massive storms and acid rain scour the planet.

The southern continent is literally melting under the feet of Dr. Xin Rhou as she is trapped at the South Pole, and she is perhaps the only person in the world with a full accounting of the data recorded when Aeon exploded.

Thousands of miles away in the Amazon, Max Carver struggles to stay alive while attempting to stop his old friend and brother Ben Belloc escaping from the Colony. But the only thing Max really wants is to get north of the equator and find his pregnant wife Talisha as she is about to give birth.

Talisha, meanwhile, has joined millions of Aeon refugees on the roads of America. Most cars have been rendered inoperable by the supernova burst, and all communications and power grids are down. But for Tal, on the verge of giving birth in a suddenly very unforgiving world, all of this is even less important than the revelation she has just learned...

Dive into Aeon Burn here on Amazon. Also available on audiobook.

2. Nemesis by Jeremy Robinson

From the ashes of a devastated Boston, a harrowing legend emerges. Thirteen years prior, the colossal kaiju, Nemesis, ravaged the city in her relentless pursuit of retribution. Today, mankind's survival teeters on the sacrificial offerings atop a chilling monolith known as The Altar, where the condemned pay the ultimate price to prevent Nemesis's wrath from consuming humanity.

Agent Graham, a grizzled operative on the brink of retirement, finds himself tethered to the fiery, untested Agent Tilly. Together, they are the unlikeliest of partners within the Nemesis Special Operations group, the government's first line of defense against the looming shadow of the massive Goddess of Vengeance. Their mission? To hunt down the enigmatic cult, Divine Retribution, before they can harness the devastating power of Nemesis to reshape the world to their warped sense of righteousness.

As Graham and Tilly plunge into Boston's darkest underbelly, they face more than just the echoes of their city's past. They must outwit cunning cultists, battle impossible monsters on the windswept beaches of Martha's Vineyard, and forge an unexpected alliance with the motley and formidable all-female biker gang inspired by the Queen of Monsters, the ‘Nemesisters.’ Every step drives them closer to the unthinkable, and asks the questions:

How many must be sacrificed to save the world from the ever-watchful gaze of Nemesis?

How much more will she demand when the world needs to be saved?

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

1. DELIO. Phase One by RR Haywood

When nearly every person on the planet becomes frozen a small group of survivors must navigate the darkest sides of human behaviour while learning about the creation of the world's first fully self-aware Artificial Intelligence.

In London, Yelena is trapped in a room after being sex-trafficked from Romania, and Alfie has one more drop to make then he's free of drug dealing forever. In New York, Detective Joe Stephens is working a case. Life has worn him down. He's ready to end it. Poppy is a film-maker desperate to never go back to the UK, and Tripal is a clerk in a 7-Eleven that has a secret. A secret that might be connected to why every human being on the planet just froze.

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

How many of the 2023 Readers' Choice top 10 list have you read? Which ones are you adding to the top of your TBR for 2024? Any stellar books you think didn't get their due? 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.