Book picks similar to
The Sword of Jupiter (Imperium Book 1) by Travis Starnes


time-travel
military
modern-knowledge
modern-man-helps-roman-era-civilisa

Bartley's Man (Ring of Fire)


Paula Goodlett - 2016
    It is the journey of Johan Kipper, a reluctant soldier in illy's tercio as he collides with the fact of Grantville's existence. Johan decides he doesn't want to be a soldier anymore. So he becomes what he thinks is a swrvant to entrepreneur David Bartley and the Higgins family. They actually treat him like a person, in stark contrast to how he has been treated all his life by the royalty and nobility of his own time. Johan returns this genuine caring with love and loyalty as he watches David grow into manhood and he grows as a man.

Velocity Weapon


Megan E. O'Keefe - 2019
    A high-flying sergeant, Sanda has the skills to take down any enemy combatant. Biran is a savvy politician who aims to use his new political position to prevent conflict from escalating to total destruction.However, on a routine maneuver, Sanda loses consciousness when her gunship is blown out of the sky. Instead of finding herself in friendly hands, she awakens 230 years later on a deserted enemy warship controlled by an AI who calls himself Bero. The war is lost. The star system is dead. Ada Prime and its rival Icarion have wiped each other from the universe.Now, separated by time and space, Sanda and Biran must fight to put things right.

Kirov


John Schettler - 2012
    Built from the bones of all four prior Kirov Class battlecruisers, she is updated with Russia’s most lethal weapons, given back her old name, and commissioned in the year 2020. A year later, with tensions rising to the breaking point between Russia and the West, Kirov is completing her final missile trials in the Arctic Sea when a strange accident transports her to another time. With power no ship in the world can match, much less comprehend, she must decide the fate of nations in the most titanic conflict the world has ever seen—WWII. The novel is an intensely focused naval saga, where the crew of the lost Russian battlecruiser must struggle to understand what has happened to them, and then make a choice that could be decisive in the outcome of the war—who’s side are they on? The course of all future history rides in the balance! At this crucial time, Kirov finds herself just days and miles away from a secret summit at sea between Churchill and Roosevelt. On August 9, 1941, the two great leaders meet to plan cooperation in the war and lay down the Atlantic Charter, which decides the framework of post war power in the world and becomes the basis for the new United Nations and NATO. With the hindsight of history as their guide, Kirov races south toward the secret meeting place at Argentia Bay in Newfoundland. Even as she cruises for the Denmark strait, both Roosevelt and Churchill prepare to embark for the sea journey as well. The Royal Navy soon discovers what they believe to be a fearsome new German raider in the Norwegian Sea, and they join with America’s Atlantic Fleet to bar the way and hunt down the most formidable surface action ship in the world.

The Unexpected Gift of Joseph Bridgeman


Nick Jones - 2015
    When his annoying accountant suggests hypnotherapy might help him sleep, Joseph accidentally discovers he can time-travel and things get a little complicated. With the help of Vinny, a local record shop owner, Mark, his old school friend, and Alexia Finch, his hypno-time-travel guru, Joe sets out to change the course of his life. He needs to get back to 1992, the year his world fell apart, the year that Amy, his sister, went missing. The only problem (apart from his clothes disappearing) is that the further back he goes the less time he gets to stay there. Can Joe master his new-found gift before time catches up with him?

Office Wars: The Mailroom Clerk


James G. Patton - 2017
    He sleeps in a real bed and eats real food and only jumps into Neuroma to work. All he wanted was to log in, work and log out and live in general obscurity. Getting the attention of a CEO, meeting a stranger in real life, and forced to play in a secret game of corporations were not penciled into his calendar. While that was bad, he started to question whether Odditek was still in control, or had their complacency created the noose tightening around their neck. Bran was not yet aware of the choice before him. He could no longer stand back and watch, and he had to pick a side and fight before he lost the ability to choose. Would he recognize the inevitable in time? Was it possible to make a ‘correct’ choice, or had the lines blurred so much that hero and villain were indistinguishable? This novel is part of an Odditek series and is a LitRPG novel. I realize it’s the first Odditek series, but more are coming. This series started as a companion series to a book called Lantern Online. I wanted a way to build up the world as it now exists, and to explain what Odditek is. Neuroma and Nerves are mentioned in Lantern Online, and I felt all that information was taking away from my story and is mostly not relevant, but good to know information. I took a lot of it out and added it to this series. Anyway, out of that came Office Wars. I hope it's different than most LitRPG you will read, and brings another dimension to the genre. Explicit language! I will not lie, there is a satirical nature to this story, and a lot of the language and scenarios are morally questionable on purpose. In this story and I use a lot of curse words and controversial commentary. Just look on Facebook or any half a dozen social media sites, and you will see similar language, conversations, and other nonsense. If we all moved into a digital world, this is how I view that world.

Killzone: Ascendancy


Sam Bradbury - 2011
    It is survival'Visari, the vicious Helghast dictator, is vanquished, lying dead at the feet of ISA forces soldiers Sev and Rico. Yet the battle is far from over. Visari's death has wreaked havoc in the Helghast Empire, leaving a legacy of destruction. His last act of violence - a nuclear bomb - has decimated the Special Forces. Sev and Rico must complete their mission alone. They will fight to the death to keep the ruthless Helghast troops at bay. Based on Sony's bestselling game Killzone 3

Shapechanger's Birth (Shapechanger Tales)


Laer Carroll - 2011
    She sets off to find who and what she is. Which will include orphan, laundry owner, medical doctor, scientist, inventor - and the most feared crimelord in all the British Empire.