Naze Boku no Sekai wo Dare mo Oboeteinainoka? - Volume 1 Chapter 1 part4

He is a gifted and intelligent young man. He is a murderer that enjoys the bloodshed.

He has a split personality disorder, yet his IQ far exceeds that of normal people.

He entered a maximum security prison as a young boy, but he made himself a genius by reading extensively in the prison.

He has two names. The first one is Qin Lun, the other is Joey.

Today will be his execution day…

- Description from Novelupdates

In the night, cook wine with the master and discuss the way of heaven and earth!

In the snow, Yu Jian chased the tide of Guangling River!

- Description from novelbuddy

He is a young man without a spirit root. It is believed that this denies him the chance at cultivation. However, a mysterious lady imparts a Supreme Demon Classic to him and from then on, he starts his path of cultivation.
He undergoes a total transformation to emerge as the most fearsome and powerful fiendish demon in his era, that even immortals and fiends are fearful of him, and saints are at his beck and call.
Mastering the Supreme Demon Classic is the turning point in his life. He is able to unleash his immense and divine power from within, illuminating the entire universe!

Jiang Li accidentally transmigrated to a fantasy world along with a game called Super Godly Machine Army.

[Ruler Panel]

[Ruler: Jiang Li]

[Game: Super Godly Machine Army]

[Interface: Military Units]

[Infantry Machine Unit], [Navy Machine Unit], [Air Force Machine Unit], [Space Machine Unit], [Special Forces Machine Unit]

[Energy Points: 0]

[Soul Sparks: 0]

Soon, Jiang Li created Combat Machine Soldiers, Electric Machine Soldiers, Liquid Metal Machine Soldiers, Machine Dragon Riders, Nether Energy Machine Soldiers, Machine Engineers and many more.

This was the story of a man in a fantasy world who became invincible by creating a machine army that dominated the world.