Using entries to cultivate immortality in chaotic times - Chapter 753 - 253: Two Seven-colored Entries, Isn’t that Too Extravagant?

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 madman's journey up the towers.These are the ironclad rules of the Three Towers Game in the eyes of others:1: Do not create killings in the Tower of Desire. The Tower of Desire is a tower full of love; please climb it with love.2: Killing is the only pass for the Slaughter Tower. All creatures in the Slaughter Tower are enemies of humanity; do not try to communicate with the monsters.3: Stay away from the Deceit Tower, and happiness will be abundant.These are the ironclad rules of the Three Towers Game in the eyes of Wen Xishu:1: The Tower of Desire is full of sheep that won't kill.2: The monsters in the Slaughter Tower are powerful and reliable, truly a camp of righteous fathers.3: I absolutely love the Deceit Tower.

He is an undead who is devoid of all humanity, he is the one and only supreme overlord, he is a man who has severe mysophobia.