Peerless Little Immortal Doctor - Chapter 566 - King Xia

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.

The novel follows the story of Arnold, a porter, who accompanies warriors and superhumans inside dangerous dungeons, which are distinguished by their colours. The porters were always mistreated by the modern human civilization and even though their job was riskier than that of warriors and superhumans, their existence was never appreciated nor were they paid well. No one knows why these dungeons started to appear all over the world. The only thing they know was the dangers that would find their way into the world if they didn’t kill the monsters. But only a selected few cared about the calamity because for the rest it was all about earning money and gaining power. But nothing in this new world is constant and everything keeps changing, and this time the change would find its way towards an ordinary Porter. After stealing a scroll from the dungeon, he ran off to his home. The scroll gave him powers no one could’ve imagined to gain. But he wasn’t alone. 9 other humans had been granted similar powers... powers of the Gods! What would Arnold do with his newfound powers? Will he kill the other 8 Paladins and rule over the world which had oppressed him for years? Or will he rise against the Gods and make them repent for their crimes? Can the strength lent by the Gods be sufficient to deal with them once and for all? Would he be able to defeat his creator? Or will he join the Gods instead? Too many questions, too little time. The decisions he would make could be the end of humanity Or would an ordinary Porter, become he world’s only hope? Follow me on the journey to the power of this ordinary Porter as he becomes the Savior or the Devil.

After traveling for three years, Lin Yu was drawn into a horror game unexpectedly.

However, he discovered one thing.

The dungeon boss feared by countless players turned out to be the little loli who called her big brother next door.

then.

In the horror hospital, the director of the hospital turned out to be the uncle downstairs who made him and his granddaughter fall in love.

In the bloody slaughterhouse, the existence known as the bloody butcher turned out to be the uncle upstairs who wanted him to be his brother-in-law.

In Changteng Ghost School, the woman who frightens countless students is actually the long-legged sister Yu who invites her to her house for dinner whenever she has nothing to do.

…

Traveling through three years, you told me that this place is actually a horror game world?

(Introduction is weak, please read the text)

- Description from novelbuddy

Introduction: Su Muge, a God’s favored girl in the medical community, became an ugly girl due to time-space travel. Her father disliked her and her mother was too cowardly to protect her! Xia Houmo, a lonely wolf who was haughty and ever triumphant in battlefield, was asked by the emperor to marry a useless and ugly girl! On their wedding day, there was an assassin and he took her as a shield, as a result, she was wounded. Su Muge smiled slightly with crimson eyes, “Xia Houmo, I owed you, and I pay you now.” Seeing her red blood, his heart hurt… “Su Muge, you owed me too much and you must pay me birth after birth!” The heroine was not beautiful and not omnipotent, but she had golden light and magic hand.