An Eldritch Legacy: Sin & Sacrilege - Chapter 8: Desire under a lightless flame...

Mission: Transmigrate world by world into a scoundrel’s body; clean up the original’s life.

Wei Mingyan is a liar, through and through. But he doesn’t see himself as such. His motto? “If one deceives others for a lifetime, then all lies would become the truth.”

- Description from Novelupdates

Scheming female assassin transmigrated to become the weak Eldest Miss, her story is wonderful and stunning, attracting peach flowers to blossom open. Cold calculating emperor? Geniusly bad crown prince? Insidious happy-go-lucky prince? Gentle physician? Ice-cold mystery male? Who is her true love? Haha, but she only eats, definitely will not take responsibility! Beautiful men be careful!

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.

“It was an era taken over by a single online game, the “”Second World.””

The “”Second World”” offered a vast amount of classes and skills...

Micheal, our protagonist, reincarnated back into this era and realized he had a few bugged passive skills that would put him as one of the best.

[Passive skill: Damage Reduction: When you receive damage from an enemy, the damage will be reduced accordingly to the reduction percentage. Skill lasts for 10 seconds and takes 10 seconds to cooldown.]

[Passive skill: Damage Reflect: When you receive damage, the damage will be reflected accordingly to the reflection percentage.]

[Passive skill: Damage Multiplier: When you deal damage to an enemy, the damage you dealt will be multiplied.]

[Passive skill: Sword Attack Nullifier: When you attack an enemy with a sword, the enemy will kneel in front of you and catch your blade with their bare hands.]

[Passive skill: Priest: When you suffer from damage, automatically heals yourself.]

[Passive skill…]

[Passive skill…]

.........

After reading through all his passive skills, he suddenly realized how invincible he as.

Even though he didn’t possessed a single active skill, he could still triumph over everyone else with his passive skills.

One day, when the “”Second World”” mysteriously merged with the real world, monsters and divine beings began to invade Earth…

That was when Micheal realized that his passive skills have also given him the power to kill these divine beings…”