Master Zhan, Calm Down! - Chapter 2638 (END) - : the ending and the author’s words

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.

Joseph Sullivan is at an all-time low. He lost his job, his fiancée dumped him, he moved back to the Midwest and currently lives in his parent’s basement—oh, and his workout was just interrupted with the arrival of the System.Earth has become a playing field in a contest amongst the gods, where mortals are the pawns. The winning god gets the glory, and their chosen champion gets a single wish. The first stage of this game: Tutorial – Class Selection.Provided the ideal stat array for a physical, combat-focused class, the choice for Joe is obvious. Until he fat thumbs the selection screen and ends up selecting Spellcaster. His starting Intelligence stat? 1.With a useless class selection and only his raw testosterone-fueled strength to back him up, Joe decides class optimization is for dummies. Pumping all stat points in Strength, he hopes to not only survive the contest of the gods, but to win the whole damned thing.After all, a real wizard should be measured by how much they can bench!

With the flick of sleeves, it overturns.
With a thrust of punch, it shatters!
It’s a vast world filled with adept martial artists!

The ancient clash of the titans brings forth the wrath from heaven.
“They send down the thunder, they send down the fire! ”
They bolted the continents separating them into a land of 9 countries covering the 18 provinces, and the world therefore, ushers into the era resonating with the Dark Ages.

However, as the things run downhills, rise forth the cultivator team comprising the big deals.

Ye Shang, a young villager with a cinder burning in his heart thus, set off into the world of cultivation. A life-changing mystery! A competition for the throne! The winner becomes king!

What’s in store for him?

- Description from novelupdates

After an unfortunate encounter with Truck-kun, Kieran Darkmoon suddenly found himself transported to a world full of women, where men are as rare as a unicorn and the cultivation game is anything but straightforward!With a lewd system that rewards him for getting frisky, Kieran quickly learns that pleasure is the path to power! From racy encounters with sect elders to sneaky adventures in the weapon pavilion, every sexy escapade earns him points—and who doesn’t love a good point system? As he navigates his way through a harem of powerful women, bizarre quests, and comically awkward situations, Kieran is determined to rise above his circumstances (and maybe get some snacks along the way).Join Kieran as he juggles dual cultivation techniques, earns outrageous bonuses, and uncovers hidden treasures—all while trying to stay out of trouble (and in others pants!). With epic battles, outrageous rewards, and enough steamy moments to keep you blushing, “Lewd System in a Cultivation World Filled with Women” is a hilariously naughty adventure you won’t want to miss! Buckle up for a journey where every encounter is a chance to level up in more ways than one!