MTL - Marvel: I, Created the Masked Foundation X - Chapter 3

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.

Tian Man Continent is a world of martial arts. A young boy named “Su Yi” led countless yao (monsters or demons) and overrode countless families who had thousands of years of history. He rose abruptly in the world as the brightest star in the sky. He married beauties and walked towards the peak of of the world, and finally ascended onto the thrones of the ancient gods!

- Description from novelupdates

Ever wonder how it would feel to live life from the beginning all over again?

When Earth falls to ruin and humanity’s survival is at stake, all of mankind is forced to enter the fantasy universe of the world’s hottest VRMMORPG, Xianxia Online. To uphold law and order, past players’ profiles were erased and forced to start anew, while law enforcers and authority figures such as government officials were granted powerful positions right off the start. After all, this was a world where dog eats dog, and the weak are cruelly left behind.

Xuan, alias Zero, had been the top player and a legendary figure on the leaderboards of the game when the news struck. He had been mere inches away from being the first player cultivator to ever enter Godhood, but now, everything he had once possessed—divine weapons, legendary artifacts, and mythical beasts for pets—was gone, along with his thousands of years of cultivation. Having always been a lone wolf and remained anonymous, this reset hit him harder than most players, who could comfortably rely on others for help when needed.

But no matter. The path of cultivation was riddled with challenges and hardships—since when did he let something as trivial as this stop him? He may have lost all of his riches, but he still had the most powerful weapons of all by his side—knowledge and experience. Combine that with the various secret treasure stashes he had around the world of Xianxia Online, and his climb back to the pinnacle of strength would be inevitable. Very soon, he will rise to the top again, and crush those who dared to try and tie him down.

This game was mankind's world now. And he... was the apex predator.

Witness as Xuan climbs his way back to the peak of cultivation and dominates everyone else in existence!

Qin Guan was reborn and sent back to his final semester in High School 18 years ago. Getting a second chance at life, he works hard to turn things around and eventually become a Prince Charming. What will his life be like the second time around? What will he have to go through? How will he succeed in turning from a loser into a Prince Charming?