Unputdownable Sci-Fi Books with Romance and Heart

The sun is dying, and seven unlikely strangers are the galaxy’s last hope. When a space station explodes, they escape together on a stolen ship. However, survival isn’t easy when everyone’s hiding secrets—and some are falling hard for each other.

If they can stop fighting (and kissing), they might just save the universe. But love complicates everything, especially when enemies, rebels, and ancient powers are hunting them down. Still, if passion can spark among chaos, then maybe saving the galaxy isn’t such a long shot after all.

When Rosemary joins the Wayfarer crew, she wants escape—not excitement. However, life aboard this chaotic ship brings both. The crew includes misfits, mechanics, and aliens—plus surprising friendship, trust, and even a little slow-burn chemistry.

If they survive their risky deep-space mission, they’ll earn enough to live easy. But danger lurks in every corner of the galaxy. Still, through laughter, secrets, and close calls, this oddball crew proves that found family—and maybe even love—can bloom among the stars.

Red and Blue are enemies. They fight on opposite sides of a secret war across time. However, one letter—burn before reading—changes everything. What begins as playful taunts soon becomes something deeper, something dangerous. If their bond is discovered, it could mean death. But they keep writing anyway.

Each message weaves a story of longing, connection, and rebellion. As their affection grows, so does the risk. Still, they begin to question their orders, their loyalties, and their futures. Because when love stretches across timelines, even war can bend. And sometimes, the greatest rebellion is falling for the enemy.

After her father’s assassination, Selene must lead a rebellion and save her planet. However, she needs help—and fast. If she trusts Kainan, a mysterious meta-warrior with a violent past, she may win the war. But he’s dangerous, secretive, and far too tempting. Still, Selene can’t stop watching him, even as the battle begins.

Kainan has waited years for revenge. Selene’s mission offers a perfect chance—but her passion threatens to break through his walls. Their chemistry is explosive, their connection undeniable. But if they fall too deep, everything may burn. After all, love can light the stars… or turn them to ash.

Mariana wants a fresh start after her best friend’s death. However, one last job changes everything. If Carter’s right, they’ve met before. He remembers her, the grief she carries, and the time loop they’re trapped in. Now, they only have four days—repeating endlessly—to find purpose and connection.

Each reset erases progress, but something deeper builds between them. Small joys become their anchors—shared meals, playful moments, fleeting kisses. But Carter’s memories begin to fade. And if they don’t break free soon, they may lose each other forever. Because even in a broken timeline, love still matters.

When she kills the duke who destroyed her family, her rebellion begins. However, revenge comes with a high cost. If she wants justice, she must pilot Heavenbreaker—a massive war machine left from a dying era. Each match brings her closer to vengeance, but also deeper into danger.

Still, nothing prepares her for what lives inside the machine. It watches. It hungers. Yet, even as she faces bloodthirsty nobles, something else rises—unexpected connection. If she lets herself feel, she risks everything. But love, like war, refuses to be controlled. And in space, there are no easy choices.

When Imperial Prince Taam dies, his cousin Kiem must marry the widower, Jainan, to calm growing tensions between worlds. However, their political match hides deeper issues. If Jainan is guilty of murder, the empire could collapse. But Kiem suspects something more—and something far more dangerous.

As secrets unravel, the two must work together to uncover the truth. Despite their awkward start, trust slowly builds. So do unexpected feelings. But if they can’t stop a brewing war, love won’t be enough. And in a galaxy fueled by politics and lies, the truth might be their only way forward.

Being abducted by aliens should’ve been the worst part. However, crash-landing on an icy planet makes everything worse. If Georgie wants to survive, she needs help—and fast. But the only creature she finds is huge, blue, and way too into her.

Still, when survival means bonding with a barbarian warrior, choices get complicated. Vektal offers protection, food, and something surprisingly tender. As attraction grows, so does the danger around them. If Georgie can trust her heart, she might find more than safety—she might find home. Even if it comes with horns and a tail.

Cara can travel between worlds—but only to places where she’s already dead. Luckily, her other selves rarely survive. However, when one of her last remaining doubles dies mysteriously, everything begins to unravel. If she investigates, she risks her safety, but if she stays silent, the truth could disappear forever.

While navigating fragile trust, political danger, and painful memories, Cara also begins to fall—for her sharp, closed-off handler, Dell. The multiverse may offer endless chances, but love and belonging feel just out of reach. Still, if she can uncover the secret behind her survival, everything might finally make sense.

Kira Forrest wants peace, not glory. After surviving war and heartbreak, she escapes into a salvager’s life—quiet, simple, safe. However, one detour throws her back into danger. If she wants her freedom, she must face the alien race that nearly destroyed everything.

A powerful Tuann warrior blocks her path. He’s cold, suspicious—and far too perceptive. Still, something unexpected sparks between them. If he discovers her secrets, the fragile peace between species could shatter. But if she lets him in, she might finally stop running. That is, if they both survive what’s coming next.

In the year 6066, Asha works off humanity’s debt under a ruthless galactic empire. However, stolen knowledge and a strange visitor change everything. If she wants freedom—and her sister back—she must take a risk that could cost her everything. Her rebellion begins in silence but quickly roars into the stars.

Meanwhile, in 1812, Obi is tired of time travel and heartbreak. Still, if he ignores the signs, history may fall apart. When their paths collide, so do timelines, destinies, and ancient powers. If they fail, the galaxy falls. But if they succeed, love and legacy might just survive.

Naira is a spy with a mission—take down the powerful Mercator family from the inside. However, her plan goes sideways fast. If she wants to survive, she must work with Tarquin—the heir she swore to hate. Stranded on a ruined planet, trust becomes their only option.

Tarquin never wanted power, just peace. But now he’s stuck with a revolutionary who might destroy everything. Still, secrets unravel, and so does their loyalty to old truths. If they escape, nothing will be the same. Because sometimes the enemy isn’t the person beside you—it’s the lie you’ve always believed.

Sirantha Jax can jump ships through grimspace—a rare talent the Corp controls. However, after a deadly crash, she wakes in a cell. If she wants answers, she must escape. When rogue fighters break her out, she’s forced to join their rebellion.

Jax doesn’t trust them—especially the brooding pilot with secrets of his own. Still, sparks fly as danger closes in. If they survive long enough, they might take down the system. But if she falls too hard, it could cost her freedom. Or worse, her heart.

Devi Morris wants more than mercenary gigs—she wants to rise fast, no matter the risk. However, her new post on The Glorious Fool is anything but easy. If she can survive one year, it’ll fast-track her career. But strange missions and dangerous secrets stack up quickly.

Still, Devi doesn’t back down—even when a mysterious crew member complicates everything. Their chemistry sparks, but trust comes slow. If she pushes too hard, the truth could destroy her. But if she walks away, she may never uncover what’s really happening aboard this chaotic ship.

After fleeing a ruined Earth, January struggles to survive as a second-class citizen on Mars. However, one public disaster changes everything. If he agrees to a fake marriage with rising politician Aubrey Gale, he can escape forced medical risks. It’s supposed to be simple—five years, no strings.

Still, Gale isn’t who January expected. As sparks fly and threats rise, their alliance turns dangerously real. If they can’t stop a powerful enemy, all of Tharsis may fall. But if they let themselves feel, love might grow in the unlikeliest place—between a refugee and a reluctant leader.

When a classic American diner appears in a foggy UK field, agents Adam Rubenstein and Sunil Rao are pulled back together. However, their partnership is messy—haunted by secrets, sarcasm, and unresolved tension. If they can’t work together, the strange force known as Prophet may consume everything.

As bizarre objects from people’s memories turn deadly, the two must confront a weapon unlike any before. Still, buried beneath the chaos is something more personal. If Adam lets down his guard and Rao finds clarity, they might survive—and even find connection in the most unexpected place.