Escape the Infinite Chambers - Chapter 3: Fatal

Yan Qing’s sister, who has been sent down to earth, was schemed; designed to be a miserable female character in every life.

To save her younger sister, Yan Qing, a retired quick-transmigrator, full class man, once again set foot on the world shuttle journey to hardcore protect his sister and counterattack scumbags.

And then … ——

The real daughter who was kicked out of the House: sorry, my richest brother came to pick me up.

Abandoned White Moonlight stand-in: sorry, my elder brother said you lost your throne.

Face-slapped cannon fodder female partner: sorry, the country spoils my brother, my brother spoils me!

- Description from Novelupdates

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.

A data loving young man from Earth has an accident which transports him to a dark land filled with terrifying creatures and magical powers. Fortunately for him, he has a Biological Assistance Chip to ease his path. However, things in this bizarre and strange world are not always as they seem, and, though it is a tremendous asset, the chip doesn’t always work as expected. With all of the crazy creatures and magical mayhem around him, one can only wonder what the future holds for this young man…

In 2122, the “game” came.
【Are you terminally ill? Disabled? Disfigured? Unbearable pain? Do you feel that life is meaningless? Come join the game! Survive, win, win with high scores, and you will gain a healthier body, a better appearance, and greater abilities…you will—evolve! 】
[Global live broadcast of the game, registration starts now——]
Eighteenth-tier star Lu Tingliu entered the game with a terminally ill diagnosis certificate in hand.
*
After each player enters the game, they will draw a basic card of their own, which will determine their evolutionary direction and their basic ability.
The card Lu Tingliu drew is called [Split].
Skill introduction: You are a splitter. You are a mercenary that money can buy, you are a doctor who is good at anatomy, you are a great detective who knows everything, you are a god, you are a car mechanic, you are a stunning beauty, you are a weak child… You are a splitter. You are the top actor, you are the most insane lunatic.
Current Split Personality: 2/147
*
In the era of gaming, players have become the most high-profile stars.
Lu Tingliu is the most mysterious, the most heretical, and the most insane among them.

【Reading Tips】
1. Not scary, not brain-burning, the heroine of the battle department upgrades the cool text
2, the male protagonist Chu Hongjing, Meiqiang miserable loyal dog
3. Efforts to update ing

Content label: Shuangwen live broadcast
Search keyword: Protagonist: Lu Tingliu ┃ Supporting role: ┃ Others:
One sentence introduction: Become a goddess

- Description from novelbuddy