The King of The Worlds - Volume 1 - Chapter 3

It was an enormous tsunami that completely covered the sky, and due to its dark water, the sun had been blocked out. A sense of despair ran through everybody as they looked towards the peaked wave quickly crashing down. But was I the only one who noticed the massive sea monster lurking towards the front of the wave? CRASH [Requirments Met] [System has been chosen] [Your god has been selected] [System Granted] [Poseidon System is being installed]

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.

Rae, a perverted thief with bad luck and worse life choices, was caught peeping on a couple getting busy. Naturally, he got his ass kicked—and his life ended.Or so he thought.Just before his untimely demise, Rae had one last wish: to live like a king, surrounded by voluptuous women with big booties and even bigger breasts.Turns out, death wasn’t the end. It was just the beginning. Rae woke up in a fantasy world, and not just any world, but one where he was gifted a special system. A system... with some unusual tastes.[Ding!][Quest: Drink breast milk from the source.][Litres: 0/10][Reward: Race Change from Goblin to a race of your choosing.]“Wait—what? I’m a goblin now?!”

“I thought we were brothers, and this is how you treat me?”Clutching his bloodied abdomen, John stared fiercely at the two figures before him.And the dragger embedded in his stomach was none other than the symbol of their former friendship: the legendary gear [Apate’s Whisper].“Just got a little lucky, and you think you’re so great?”“Claiming to be blessed by the Goddess of Luck? I’d like to see where your Goddess is.”“Hahahaha…”Amidst the taunting laughter, John’s world gradually darkened.…[Ding, congratulations to the Host for becoming player number 001 in Apocalypse]“Didn’t I die? What time is it now?”[Ding, congratulations to the Host for acquiring the SSS talent Kiss of LUCK, randomly gaining a hundredfold Bonus!]“A hundredfold Bonus?”[Ding, the Host executes a normal attack, physical damage 5; based on talent evaluation, deals a total of 2000 points magic damage!][Ding, the Host obtains an iron dagger, quality common; based on talent evaluation, it upgrades to a Legendary dagger!][Ding, the Host obtains a magic scroll, quality rare; based on talent evaluation, it upgrades to a Divine scroll!]“Good, this time, you all will pay for what you’ve done!”