Light on the Sound (Inquestor Series Book 1) FREE by S.P. Somtow: The Inquestor Series was a classic science fiction series of the 1980s — now reincarnated for the 21st century, with more adventures, more spectacle, and more extras. Tachyon bubbles, people bins and galactic empires — and profound family conflicts. The first book in the series is offered free in order to introduce the series to new audiences.

This book is Free on June 7, 2026

The Emissary (Omega Taskforce Book 1) FREE by G J Ogden: An alien neural weapon has pitted humanity against itself, leaving Earth open to conquest. Only Omega Captain Lucas Sterling and his AI warship stand in the way of total annihilation. To win, he must be as ruthless as the brutal Sa’Nerran invaders. Fans of Battlestar Galactica: don't miss this epic military sci-fi saga by award winner G J Ogden.

This book is Free on June 4, 2026

They Will Be Coming for Us (The Jovian Universe Book 1) FREE by Kim Catanzarite: Read the epic story Amazon reviewers are calling "A wild and harrowing tale!" This five-book series begins with a young woman who meets and quickly marries a charismatic astronomer named Andrew Jovian. Little does she know she has become the key to an extraterrestrial’s family prophecy. "No one's doing it like Catanzarite"—IBR (Starred Review).

This book is Free on June 2, 2026

The Last Lumenian (The Last Lumenian Book 1) FREE by S.G. Blaise: Lilla must learn to control her powers and defeat the dark archgod before he finds her - the last Lumenian. Does this princess-turned-rebel have what it takes?

This book is Free on June 1, 2026

Terradox (Terradox Book 1) FREE by Craig A. Falconer: They were heading for Venus. Somewhere else found them first. Crash-landing on an uncharted world full of wonders wasn't what anyone had in mind, and the irresistible temptation to explore and conquer the incredible landscape reveals new dangers hiding around every corner...

This book is Free on May 31, 2026

Fourth Ward (The Edge Book 1) FREE by S. David Acuff: Book One of The Edge series. Three privileged brats from glorious Skyberia are shot down and stranded in the lawless wasteland known as the lowlands. Their only chance of survival is Kit Ryder— a lethal, foul-mouthed mercenary who will keep them alive for exactly as long as they can pay for her services. Welcome to the Fourth Ward.

This book is Free on May 29, 2026

Prepper (Prepper: A Grid-Down Post-Apocalyptic/Dystopian Survival Series Book 1) FREE by Tom Abrahams: DEMOCRACY ISN'T THE ONLY THING THAT DIES IN DARKNESS A cataclysmic domestic terror attack kills power and drives major cities into darkness. PREPPER is a five books series that follows the adventures of a suburban family ready for the apocalypse, a survivalist isolated in his rural compound, a wily politician, and a tech billionaire whose grip on reality is as fragile as the grid.

This book is Free on May 25, 2026

Nuclear Midnight (Savage Dawn Book 1) FREE by Robert Cole: On holiday in England, Alex Carhill survives a devastating nuclear holocaust that plunges Britain into a nuclear winter. As survivors battle starvation, disease, and a poisoned wasteland, a fragile new society emerges. But years later, a deadly enemy returns, forcing humanity into one final battle for survival.

This book is Free on May 18, 2026

Three Sticks (Three Sticks Book 1) FREE by David R Anderson: Three Sticks is a coming-of-age fantasy series that follows the adventures and growth of two teenage brothers, Sten and Hopper. In their remote village of Wendel, their story begins with small challenges like bullies and first crushes, but soon issues arise with ever-higher stakes and no easy solutions.

This book is Free on May 17, 2026