Demon Queen Rebirth: I Reincarnated as a Living Armor?! - Chapter 770 - The Sages

It has been six years since the game to decide the world’s fate began. The strongest player, Hero King Kang Yoosung, who has never lost his first place as the top ranker, greets a new season. “It was… over for me a f*cking long time ago. I’m just doing this for the money.“ [Provocation stat increasing exponentially!] [The Clown Lord expresses satisfaction with contractor’s behavior!] The survival journey of a player with insane talent begins now!

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.

Xiaofei finds herself alive again inside the body of a beautiful young lady from the noble Lin family owning the same name as her.She was blessed with a peerless face, worthy of winning every men's heart and gaining women's envy in her previous life.But she foolishly fell in love with the prince, and was destined to die at the hands of her own beloved person.Even in this new life and body. Evil schemes and scandals won't let her escape even after her rebirth hence,she starts to do the same. Be evil and ruthless to those who went against her.Men and women needs to be bought.Golden Throne has to be passed over.Empire must be conquered and torched down.And hearts needs to be snatched.Xiaofei swears to overturn the world and slay her enemy. With a cruel era like this, one can only forcibly try to make a shell and protect oneself from harm.However, who would have thought that a man full of viciousness an arrogance that could pierce the sky would suddenly barge into Xiaofei's life? And would shamelessly whisper next to her ear, “Your enemy is my enemy and your wish is my command. However, I also have another wish that only you could grant for me.”“That is to have my wife for breakfast, lunch, snack, and dinner.”Xiaofei: “……”

Inside the 3000m underwater station, an international group of scientists and engineers live and research for possible settlement of entire human race. Park Mu-hyun, a reserved dentist joins the station in hopes for a quaint life in the deep sea. However, things quickly go south when the station gets attacked by a mysterious group of people.As the water starts to fill in the living quarters, Park Mu-hyun grabs his backpack and immediately runs for his life, but where to? Now, the peaceful station becomes the ultimate survival stage of cult madness and chaos.