Great Love Immortal Venerate: Why are all my fairies yandere? - Chapter 460 - 251, The Eve

Perhaps it is the choice of fate. As a senior otaku, Qian Lingfeng got the “steel shell system”. However, when he swept the world with the system, became a local rich man, made all kinds of beautiful women, opened a harem, and realized the ultimate fantasy of thousands of otaku, he found that things seemed far from simple!
When the end comes, biochemical zombies suddenly come down, fierce beasts are in power, bloodthirsty zerg roam to kill the world, and human lives are comparable to dirt. Where will weak human beings go in this world? Is humanity going to be extinct? Or … can an otaku save the fate of the human race?

- Description from Novelupdates

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.

After waking up, Su Mu found himself in a Three Kingdoms game beyond reality, and became a low-level farmer NPC who was recruited by the player’s village.

The Three Kingdoms were in troubled times, and the wars were endless.

The safety of the farmer NPC cannot be guaranteed in the slightest.

Fortunately, with a unique talent, Su Mu, who was adopted by Bai Fumei players//raised, can change jobs infinitely!

Turn 1 [militia], turn 2 [archers], turn 3 [spearmen], turn 4 [heavy armor sword], turn 5 [black cavalry], turn 6 [generals], turn 7…

Unlimited career transfers, unlimited enhancements!

When the game and reality are connected and the supernatural comes, Su Mu has already become a mythical general who can beat the world, unifying the game and reality, and creating his own supreme fairy garden!

- Description from novelbuddy

Reborn as a sword, he lived for hundreds of years, and then he occupied the body of a 15-year-old prince.