Another Stupid Isekai - Chapter 891 T.D.O.N.B: Maybies

Alix, a devoted player of Strongest Kingdom, finds himself reincarnated as his in-game avatar—the powerful and fearsome Demon King—in a mysterious and unfamiliar world. Armed with his gaming prowess and a penchant for stirring up trouble, Alix must navigate a realm fraught with danger, intrigue, and opportunity.As he discovers the secrets of his new domain, forms alliances, and faces relentless foes, one thing becomes clear: chaos follows wherever he goes. Will Alix rise to become the ultimate ruler, or will his wild antics lead to his kingdom's downfall?Join him in this thrilling, action-packed adventure where strategy, humor, and epic battles collide!

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.

Chu Nan was just an ordinary student, but because of an accident, he obtained the data collection, analysis and processing ability equivalent to the most advanced optical brain.

“The Fang family had two daughters. Their youngest daughter, Fang Yan, was known for her beauty. Rumor had it that she was indescribably beautiful. However, the eldest daughter of the Fang family, Fang Liu, had a low IQ since she was young and only started to speak when she was eight years old. Her parents regarded her as a burden while the outside world treated her as a laughing stock.

However, no one knew that Fang Liu was an ultimate prodigy whose intelligence merely developed late. Afterward, Fang Liu got pregnant for no reason. Four months into her pregnancy, her parents forced her to marry the richest man in South City, the Mo family. Rumors had it that her husband was an old man who had been paralyzed in bed since the age of seven. Unexpectedly, when Fang Liu married into the Mo family, she found out that not only was her husband not an old man, he was also extremely handsome.

He was the Young Master of the Mo family that everyone admired—Mo Yu! Moreover, Fang Liu’s child was not even Mo Yu’s, but Young Master Mo did not seem to mind? Mo Yu even declared in front of everyone, “”Although the child isn’t mine, the wife is mine!”” Everyone else, “”Young Master Mo is too honest!”” After Fang Liu got married, Young Master Mo doted on her so much that even she was moved. She had found a great stepfather for her child! A few months later, Fang Liu looked at her newborn’s face and it nearly felt like she was looking at a miniature version of Mo Yu. Fang Liu, “”Didn’t you claim that the child isn’t yours?”” Mo Yu shrugged. “”I was just spouting nonsense.”” It turned out that there was no such thing as the right person at the right time at the right place. It was all premeditated. “”It’s because I love you that I’ve tried everything I can; I endured all the criticism for my only wish is to have you as mine.