Records of Dungeon Travel - Chapter 313

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.

August Clementine was once Reacher, a wealthy and thrill-seeking businessman who had everything but satisfaction in life. After a fatal adventure, Reacher awakens on a parallel Earth, in the body of the destitute and troubled 19-year-old August Clementine. With his new identity, August finds himself burdened with debt and responsible for his beloved younger sister, Sophia. Desperate to change their fate, August immerses himself in Enders Light, a cutting-edge VRMMORPG that blurs the line between virtual and reality. In this fantastical game world, players can bring specific items that meet certain requirements into the real world and even gain a fraction of their in-game abilities and strength. Stuck at level 12 and unable to progress past his starting village due to a rare armor shortage, August must rely on his wits and determination. A breakthrough comes when he retrieves a mystical purification stone from a river teeming with magical aqua beasts and uses it to cleanse an ancient, corrupted altar. His reward includes the legendary Fruit of Corruption, a priceless item with the potential to grant supernatural abilities in the real world. Caught between the allure of selling the fruit for financial security and the temptation of gaining extraordinary powers, August must make a choice that will define his and Sophia’s future... “What? I gained the ability to extract any item from the game into the real world without restrictions?”

The year is 2025. A devout Christian named Arthur Bennett wins a lottery to participate in a revolutionary virtual reality experience at a high-tech company called Elysium. The program utilizes a unique VR pod to immerse users in a world based on a popular anime.As the other participants—a mix of personalities with varying degrees of anime knowledge—prepare to enter the simulation, Arthur remains the only one who has never indulged in anime. Upon entering this new world, he discovers an unsettling truth: pain is excruciatingly real, despite the creators' claims of a dampened pain response.He eventually finds himself trapped in prison, unable to log out, and demanding to be released from the program. Calls go unanswered, and the world of ninjas becomes a nightmare where hunger, thirst, hygiene, and even death are all real.Angered that he was deceived, he abandons all sense of logic and vows to become a villain no one would have ever anticipated.

I, Fang Cheng, an Immortal.Although I had developed many hit games, there was one question I never quite figured out.Games, why are you fun?