MTL - The Female General’s Wife Chasing Road - Chapter 53

In short, MC inadvertently created a world, but as the creator of the world, he did not know the world at all. He should have lived here like a fish in the sea with some plug-ins that MCs always have. But now he is even stumped by the bugs in the instant world. Luckily, in this world he has found his shadow guard, or his lover? So the daily adventure is getting not so boring…

- Description from Novelupdates

Suffering the machinations of family, Remus is sent to the newly built border city of Greltheaven. A place filled with opportunities but also dangers.If it had been up to him, he would have stayed in the safety of the empire, slowly building his business as he had planned, but he did not have a choice, either go to the dangerous city or live a mediocre life.Which he is not willing to do.Swearing revenge, he packed his bags and moved to Greltheaven, a city of great dangers and fortune.... A brothel is not an easy business to run, much less get success, but since fate had so kindly decreed it upon him, he will not only run the brothel but will make it immensely successful.He had plans, big plans for it; he only hoped the city would remain standing long enough to turn his small business into an empire.

A scientific genius named Thomas Harrier was transmigrated to an imperial prince body after a car accident that took his life. He found out that he is in a world similar to our own with a timeline akin to early twentieth century. The body that he is occupying was the imperial prince of a failing empire who suddenly rose to power after a successful assassination attempt of his father. Unaware that the attack is just the beginning of what is to come. He faces many challenges throughout. Will Thomas Harrier be able to live his second life in peace while running an empire and getting it back to its former glory? Or will he succumb into a conspiracy lurking within the country's borders?

Expect some:

Cold war era techs.

Super battleship with advanced electronics, propulsion, and fire control systems?
Helicopters?
Missiles?
Modern medicines and equipment?
AC-130?
A nuke?
Challenger or Abrams or Leopard?
F-4 Phantom or MIG-21?
Colored TV's.

Everything!!!

PS. Cover not mine, I just found it on google.

Yun Ling, on the eve of his sixteenth birthday, faces mixed feelings from his younger sisters, Yun Wei and Yun Chu, about the upcoming test to determine his cultivation talent—a critical milestone in this world where martial prowess can define one’s destiny.Despite their teasing and doubts, Yun Ling harbors a secret determination fueled by a tragic past. He’s not originally from Blue Star but a transmigrator who lost his parents at a young age and witnessed his father’s mu*der—a powerful martial artist and vice master of the Golden Wind Martial Club. Adopted by Yun Jinglin, Yun Ling has lived with a burning desire for revenge against his father’s killer, now a grandmaster level martial cultivator.On Blue Star, a planet transformed by disaster thirty years ago that unleashed ferocious beasts and dark demonic energy, humans discovered the power of vitality, giving rise to superhuman warriors and a new era of martial cultivation.Will he possess the cultivation talent needed to pursue his quest for revenge and protect those he cares for in a world where ferocious beasts and martial might reign supreme?