Global Mutation: Opening with Swallowing a Black Mamba - Chapter 370 - 371: Star Cluster Level Supreme Leader Summit! Evaluation Team Arrives!

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.

Chu Kuangren has teleported to the cultivation world. With him was a game plug-in that gave him ten consecutive lucky draws right as he began.

Congratulations! The host has pulled the Legendary-tier Banished Immortal Aura, the Legendary-tier constitution, Exquisite Nine Orifices Sword Heart, the God-tier constitution, Immortal Body, and one Legendary Winged Soldier…

Join Chu Kuangren as he becomes a legend of cosmic proportions, and triumphs over every being in the world!

Jiang Xinyu transmigrates into the 1950s without parents. In a time of famine with nothing to eat?But she just wants to live the life of a happy-go-lucky slacker...So she has to roll up her sleeves and fight!Carrying space, full of blessings!Heaven's favor, what you think is what you get.While others starve, she gains weight, determined to live out the luck she didn't have in her previous life.