Crazy! Are You Really A Beast Tamer? - Chapter 1563 - 758: Beast of the Fallen Arm!

Master said, the woman I held in my hands, I must protect for the rest of my life.

When he woke up, Luochen found that he had crossed over, and he was also carrying a ‘God-level landing system’.

One day, a game called “Pokémon OL” came to earth.

Everything in this game can be brought to reality.

And people in this world don’t know Pokémon at all, they don’t know anything about Pokémon.

The most important thing is that Luochen’s god-level login system can log in to the game a year earlier than others.

one year later……

The people who had just started logging into the game saw that above the sky, Luo Chen was commanding his elf to start a shocking battle with Rift Seat, smashing the sky to smithereens.

Their hearts were surging, and they vowed to become as powerful as this NPC!

But when the game’s world announcement sounded: “Congratulations to the player Luo Chen, defeating the sky lord Kaikongza!”

The whole world fell into an eerie silence.

…

- Description from novelbuddy

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.

“I don't want to die anymore, so I'll aim to be the strongest――!”After being stabbed by a random attacker, he was reincarnated in Japan, a place where 'demons' like yokai and monsters exist――and moreover, he was born into a family of 'exorcists' who exorcise these monsters!Exorcism is an important job that involves killing monsters, but it is also a dangerous job where people can die.Therefore, he――Itsuki, made a decision.In order to never die again, he would become strong.He aimed to be the strongest and practiced magic tirelessly since he was a baby――until he realized.“Huh? Isn't this too much?”This is the story of an exorcist who, despite being an ordinary person, became the strongest without realizing it due to excessive effort.