I Am The Landlord In Another World - Chapter 589

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.

Qin Lin was electrocuted by playing a nostalgic “Ranch Story” game, and suddenly gained the ability to enter the game. He also found that he could bring the watermelons grown in the game out of reality.

At first, he calculated that a pound of watermelon would sell for 2 yuan. As long as he sells 10,000 catties of watermelon seeds in the game, he can earn 20,000 yuan a day.

Later, he discovered that by upgrading pastures, he could obtain advanced crops beyond the world, raising livestock to obtain advanced livestock breeds that were far beyond the world, and building factories to obtain various formulas that were far beyond the world, and everything was different.

- Description from novelbuddy

One morning, after being bound to the system, MC started his routine of always being captured/ attacked by the ML.

In a world called Infinite Soul Star, there is an extraordinary group that controls all kinds of incredible powers by mastering their Soul Force.They are called Soul Masters.Soul Masters awaken their Soul Mark which is essential to walk the path of Soul Cultivation, but they still need the Soul Orb to help them awaken.Emrys crossed over and carried a strange multicolored orb that could strengthen the Soul Orbs. The multicolored orb was simply too mysterious. It can not only strengthen the Soul Orbs and increase their quality, but it can also bring many benefits to Emrys in several ways that he could have never imagined.The Multicolored Orb also provided Emrys a SYSTEM which can help him understand the functions of the Multicolored Orb in an easy way. It changed his life completely. Not only did it grant Emrys the ability to level up the Soul Orbs to the Mythical level that no one in the world knew about, but it also provided him the “Soul Mark” that gave him the ability to manipulate space itself.But this Multicolored Orb seems to be more mysterious than Emrys originally thought. There was much more to it than just a SYSTEM and a few abilities.This Multicolored Orb was an inheritance item of a Supreme Being, one who had surpassed the constraints of a reality known as “Cultivation”. In the universe, every creature engages in a relentless struggle, fighting, killing, betraying, and enduring countless hardships to advance along the path of cultivation. Yet, this Supreme Being had transcended beyond this reality.How?Let's walk on this journey together with Emrys to know the answer. At the same time, we can see how he becomes the Walker of Blue Sky.