I'm a Pastor, what the hell is an Acute Gastroenteritis Outbreak Spell?! - Chapter 369 - 300: Bat-man! Spiderfolk! Assault on the Valley!_1

Aldric, a young man from a remote village who doesn’t know much about games is forced by his dorm mates to play the latest and most popular virtual reality game — Magician Online, a magic-themed game with a magnificent medieval world. Armed with curiosity, he played the game without serious intentions. However, unbeknownst to him, he actually awakened the most supreme talent in the game.

Blue Star youth Ning Shi accidentally downloaded a mobile game called “Zhu Century”.

“Di! The clone is created!”

Ning Shi has obtained a game clone, the clone will become stronger, and the main body will also become stronger!

“The clone has been exercising for 12 hours in the practice room, with +1 physique and +1 mental strength.”

“Clone the dragon to kill the dragon and get the blood of the dragon!”

“Use the Charm Fruit in one’s body, and the value of the face is +10!”

Doppelgänger traverses the game worlds one by one, creating forces and leaving legacy.

“The avatar has successfully communicated and conquered Alice, the Duke of Rose. Alice is about to arrive, please pay attention to the main body.”

Ning Shi:  …

- 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.

[Simulation] + [Isekai] + [Goblin] + [Harem]After a long sleep, I awakened in a new life—as a goblin. Weak and insignificant, I found myself reborn as the lowest creature in a world filled with hostility and danger. But from the shadows of this cruel world, a silent rise begins...