These Lunatics are Obsessed With Me - Chapter 125

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.

TRPG, or Tabletop Role-Playing Game, is characterized by immersive role-playing where players embody their characters. Within the rules, players can steer the story in various open-ended directions, leading to different outcomes.“Cthulhu Campaign” is a major category within TRPGs. In it, players, as ordinary individuals known as investigators, delve into mysterious events, face unknown mythological creatures, and confront unfathomable fears. A key piece of advice in this realm is that the less you know, the longer you survive.Liu Xing, driven by curiosity, wanted to join an online Cthulhu campaign but accidentally became part of a real Cthulhu role-playing game…

The MC entered the body of the An family eldest son, An Ziran, an arrogant 16 years old boy who weighed 78 kg (~171-172 lbs), who only knew how to eat, play and sleep. Seeing his current body, An Ziran decided his first priority was to LOSE WEIGHT!

Pendulum clocks replaced sand glasses; the world’s first pocket watch ticked through its 100th year. Steam power welcomed the advent of machinery; industries took over farmlands. The study of Science brought humankind out of the clutches of superstitions and pushed them to a path of endless possibilities. And one man witnessed it all.

He was a moth among mayflies, fluttering through as generations replaced generations- fuelled by an endless thirst for knowledge. But fate decided to introduce him to a butterfly- someone alike, yet so different.

Follow ‘The Actor’ Xavier Godwin and ‘The Seeress’ Yue Lin as they delve into the world hidden from the common eyes- a world of magic and mysticism- as they evade the sights of countless hidden organisations, and create a secret society of their own.