Judejayden

Step into a world where science meets the unknown, where mechas clash in brutal duels, and where every Biocore holds a mystery waiting to be unraveled. 
Follow Nioh, a genius weapons designer, as he uncovers lost technology, battles biomechanical titans, and pushes the limits of power, in an intergalactic thrilling adventure

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The genre is Sci-fi. A mix of science and some myths. In a futuristic/interstellar world. 
The hero is fun, scheming and smart. 
The science and the weapon building is central to the story and well thought.

Biocores: The Legendary Weapon Designer

In a room on the top floor of Duke Duval's residence, Pax and his brother Leon were kneeling. In front of them stood Duke Duval and his son, Warden Jubilee. The dimly lit room fuel by the oppresive energy of the two powerhouse suffocated the pair of brothers slowly.

Sitting next to them was their sister Kalix, who was, as always, exempted from punishment. "Imagine having to resort to treachery and still losing," Warden Jubilee berated his eldest son. "My good name has never been this sullied"

"Father, it is because the Monarch hired a mysterious weapon designer," Kalix spoke.

"Shut up! I am talking to you brothers." He cut her off.

"Tell me, Pax! Why did you lose?" The older man finally broke his silence.

"Grand father I did not lose. The monarch intervened by finding a better weapon designer. I cannot defeat the machinations of the Monarch" He said confidently.

The Gold Obsessed Maniac