Reincarnated as the Elder's son: My Infinite Shop Points System - Chapter 42: A disgraceful defeat.

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.

Beneath the vast and infinite starry skies of the universe, countless tribes engage in endless strife, and the flames of war remain unquenched.Rising from insignificance, he possessed no exceptional talents, except for the ability to draw upon the fruits of cultivation from the future.Yet, in a single night, he understood the Dao, and took a step that shattered the shackles of life.With but a thought, he grasped the universal powers, casually breaking down the barriers between spirit and reality.To him, even the most profound and enigmatic of secret tomes were as simple and dull as children's books.Still, he had to go back and fill in the gaps of his cultivation...Some appeared to be glorious, unparalleled geniuses.In reality, they practiced like mad in the shadows to repay their debts...

The Infinite Survival System suddenly appeared on Planet Blue. Those who are chosen are forced to survive in dungeons.

The Survivors can continue to grow stronger if they survive the dungeon missions. However, just one failure and it would be their deaths.

Every Survivor gets a talent. Some talents can boost the Survivor’s agility, and some enhances their luck, while Zhou Chen’s talent was Passive Plunderer. It allows him to plunder the passive skills of the monsters he hunts.

With that talent, Zhou Chen slowly gathers a powerful list of passive skills.

Having been married for two years, he only takes her as an enemy. He never touches her, and even insult her in front of other women, “Si Wan, you are the most disgusting woman in the world.” Facing his ruthlessness, she decides to leave, “Gong Siming, if you don’t love, just let me go.” But he replied dominantly, “Si Wan, of course I love you.” Si Wan is caught in a trance. And he goes on, “I want to love you tenderly every night.”