I think you'll like my story. It's called Campaign. And primarily features hand-to-hand combat on the airless, low gravity moons of Jupiter.

As for your checklist.
1. Male protag.
2. Hard-ish sci-fi. I officially brand it as NanoPunk. But cybernetics are exceedingly common in this universe. Everything abides by the laws of physics. As best that I understand them, at least.
3. The plot is serious, and follows the MC, Jordan Astros. Roaming around the meritocratic Galilean Powers, making a name for himself and growing along with the Powers itself.
4. I do not write romance, frankly speaking. The cause for it in my story- well, if the life expectancy was at least a few centuries, finding lifelong love wouldn't be at the top of many people's list. Imho.
5. Being a denizen of a meritocracy. Jordan will have to claw his way to the pinnacle of their society if he's to achieve his dream of exploration.
6. Completely original. The parent series, 'Project Starfarer,' has been a work in progress for over four years at this point.
7. Action is one of the main focuses of this story. I haven't had any feedback yet, but the action is both plentiful and descriptive.

https://www.webnovel.com/book/campaign-a-project-starfarer-sidestory_18650995406625405

Title: last man on earth when there is no earth
Synopsis: After a long bad day ending in the most unexpected way, a young man wakes up in an unknown location with most his memories missing. Not bothered by that fact he works on adjusting to his new life.
https://m.webnovel.com/amp/book/13405207405701305
alernatetext

    Hello guys, please give my book a chance. This is my first book and I know you guys will love it. Thank y’all as you go on this journey with me.

    Title: Secret Love.
    Genre: Romance.
    Link: https://www.webnovel.com/book/secret-love_19195909805602105
    Synopsis:
    McKenna Maven Wright is a loving and kind young woman. She is the only female child of her family, her family being one of the wealthiest in the country. She has everything she could ever ask for. One day, her boyfriend left her just after an accident which took her parents lives and caused her brother to fall into a coma. What happens when she realizes everything she ever believed was a lie? Who will she trust again? Follow McKenna as she finds her way out of the tangles that later became her life.

    Updates every two days.

    God bless y’all as you read. Hope you enjoy reading.

    Xoxo,
    CodeyVanilla 🤗🤗

    Here's my book. Although it's placed in Fantasy Romance (I placed it in Fantasy, but it automatically allocated Fantasy Romance to my annoyance...) it won't have any Romance (and the little bits of Romance are from her brothers, rather than the FL).

    Title: I Will Be Queen
    Genre: Fantasy
    Link: https://www.webnovel.com/book/i-will-be-queen_13854331506768005
    Synopsis:
    Set in a parallel universe, where the Earth is made up of kingdoms named after the different continents of the world, there lived a young princess in the Kingdom of Australia named Adira.

    Adira is the only female in her cruel family, the youngest of 10 siblings, and the only child from the king's fifth wife.

    To gain the throne, one must be the only sibling left alive...if you were male. Females were like chattel, to be sold to create alliances between kingdoms.

    Having lived her life once already, Adira returns to when she was 10, and this time, she wants to make a change. She will become Queen.

      5 days later

      Read Yanglin's supreme emperor of mist. He's not very good writer but at least the story goes very well with a humble MC. I've been following his work for a period of time now.

      Otherwise, try castle of black iron, my cultivation system, or bank of universe.

        Ok, it seems my new novel might interest you:

        https://www.webnovel.com/book/inferno-ascended_19716246106163105

        The Hell ascended and left the Underworld forever! The New Continent evolved.The Old Olympian Gods were forgotten. New Old Gods took over!
        A nerdy guy isekais to a mysterious man who hides half of his face, right in the middle of Stygia! Trapped in an intricate world of clans and creatures, he’s destined to die because he can’t even throw a spear?
        But when Glax discovers a cheat, his ability to ‘understand’ machines might just save his life!

        What do you mean ‘machines are banned’? What about those metallic monsters wrecking havoc?

        Will he become a new mythic hero using his unique cheat, or will he screw it, literally and figuratively?

        Tags:

        #MAGIC #ISEKAI #TRANSMIGRATION #MYTHOLOGY #MALEPROTAGONIST #STEAMPUNK #WEAKSTRONG #WESTERNFANTASY #NOROMANCE

          Yes, 1 year has passed since I eventually quit my last job and that choice was a life changer for me… I started functioning over the internet, for this particular company I stumbled upon over the internet, For a few hrs daily, and I make substantially more than that I did in my last occupation…My past month check was for 13 thousand dollars… The awesome thing relating to this gig is that now I’ve more time for my children. Here is what I do...............https://rotf.lol/Right75

            Title: The Mental Patient
            Link: https://www.webnovel.com/book/the-mental-patient_19733429406233005
            Genres: Psychological Thriller
            Tags: Psychological, Thriller, Murder, Teen, Child Abuse, Psychopath, Hospital, Asylum,
            Synopsis:
            After years of abuse at the hands of their evil tyrant of a father, teenagers, Kyle and Jessica Emerson, embark on a murderous rampage through the streets of, Kingston upon Hull. After being caught, the twins are diagnosed with severe mental illnesses and must spend the remainder of the days within The Stateside Criminally Insane Research Facility, where the world’s most notorious killers and psychopaths have been placed, to investigate their desires for disarray.
            Kyle, progresses through the years with the promise of recovery, as he becomes a world renowned writer. After years of loyal service, Kyle soon figures out that, Dr. McKay, the director of the institute has been pocketing Kyle’s money from his writing and has been giving him false hope for freedom within the future. Kyle snaps and manipulates an old lock-and-key worker, who has been working in the hospital since the mid-fifties. Steal the phones, sabotage the electrical control panel and close off all other forms of communication to the outside world.
            Stateside is now under a complete state of chaos, as all doors to the outside world have been electronically sealed and all of the mental patients doors have been unlocked. Kyle sets-up a posse of cannibals, serial killers and psychopaths to hunt and kill all orderlies and doctors, to ensure his escape once dayshift arrives. He must survive his own creation, enduring against hospital staff, rival patients and his own debilitating thought process whilst he looks for his beloved sister.

              ImaginationBean

              My recently released novel, To Become Beautiful. The genre's fantasy with the strong female lead. Maybe you'd like it or maybe you won't but do give it a try anytime. Thanks!

                6 days later

                So... if you like romance... action (Martial arts), a book that's historical but not fully historical... like 90% is fiction and 10% is history... if you like suspense, if you like a world in chaos... then you have come to the right place!
                Please don't judge my book by it's cover also i want an honest review:)
                now now... i won't make you wait long.... here it is!
                The thing we can't reach
                https://www.webnovel.com/book/the-thing-we-can't-reach_19238900806897805

                don't forget to vote, comment and share if you like it!

                  Have you ever wondered what if people whose minds work differently from the social norm might also be the people who possess supernatural powers but are condemned for having them? If this is your cup of tea, you should give this novel a shot!
                  TITLE: University of the Damned
                  AUTHOR: chrstnmrvc04
                  GENRE: Fantasy, Gore, Action, Mystery, Suspense
                  LINK: https://www.webnovel.com/book/university-of-the-damned_19750138305130805

                    5 days later

                    Title- Woke
                    Link- https://www.webnovel.com/book/~woke~_19606129806877505
                    Synopsis
                    But then all of the sudden the icy breath of winter began to blow sending fallen snow across the ice. And for a moment Prim could hear nothing else but the whispers on the wind.
                    They were talking to her. But she couldn't understand them, the voice's were extremely quiet. Almost silent all together.

                      Web Novel Novel Ask