[Nail Launcher lv.0: 100% (effective range 2 meters, maximum range 6 meters; upgradeable)] → [Guaranteed Nail Gun lv.1: ... (with built-in crosshair; effective range 3 meters, maximum range 9 meters)]

As long as you keep upgrading, the range can be continuously improved, without limit.

What will an ordinary nail launcher look like if it keeps upgrading?

What will happen if an ordinary nail reaches the speed of light?

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In the famine world, danger comes not only from food shortages, but also from evil spirits and beasts, and even humans themselves.

But it's not a big problem, because Yang Chen has awakened the ability to upgrade items.

Earthquakes and floods, melting glaciers, and ancient viruses spread around the world.

Biological mutations have become terrifying alien species, and human civilization is in danger.

Chu Anqin traveled to a doomsday world and came with a panel system for making items.

[Compressed biscuits, fill the stomach, not nutritious, production materials: 5 units of food]

"This thing is here to mess with my mentality. If I have food, I won't eat it directly. Why make compressed biscuits?"

......

"Hey, moldy and spoiled bread can also be considered food?"

......

[Black Dragon Suit, powerful combat capabilities, required materials: 100 E-level energy crystals + 100 precision parts + 100 electronic components + 100 units of pure gold + 10,000 units of metal]

"Why don't you just rob it? You need so many materials!"

Chu Sheng traveled to a doomsday world.

Countless strange things have descended upon this world, cities have become ruins, and humans have become prey.

The monsters were chasing after humans by smelling their scent, and the survivors, led by the sequence ability users, formed a team and lived a life of escape from the monsters.

Chu Sheng awakens the upgrade system, and the supplies on his body are constantly upgraded.

The butcher knife turned into a scarlet butcher full of murderous intent.

The bicycle became the 100-ton king that rushed around.

.......

"You've met a good person by meeting me!" Chu Sheng pulled out the butcher knife and smiled shyly.

"The Doomsday is so dangerous. If you die now, you won't have to worry about dying in the Doomsday later!"

"Come to think of it, you should thank me!"

Small groups gather together, with sequences as the core, and wander around to survive in the doomsday.

[Sequence Upgrade] [Migration Survival] [Lawful Evil] [Egoism]

Under the extreme test of a post-apocalyptic environment, the survival of human civilization and the choices of humanity—when survival instincts collide with moral bottom lines, when individual strength intertwines with collective destiny, is the apocalypse the end of civilization or the beginning of reconstruction? This novel will explore the survival and transformation of civilization in extreme environments through the intertwining of genetic technology, the struggle for survival, and the struggle of humanity.

II. Worldview Setting

2.1 Doomsday Triggers: Triple Screening

Genetic Virus Outbreak: In 2077, a genetically modified virus called "Crimson Dawn" escapes control, capable of rewriting the genes of almost all organisms, causing terrifying mutations in all life forms worldwide. This virus can infect all life on Earth, including humans, becoming the first screening factor in the collapse of civilization.

A red fog descends: After the virus outbreak, a mysterious red fog appeared in the sky. This fog is actually a "gene filter" from an alien civilization, capable of activating hidden potential in biological gene chains and accelerating biological evolution. However, it also leads to instability in biological genes, causing uncontrolled mutations.

Remnants of nuclear winter: In an effort to control the spread of genetic viruses, governments worldwide launched "Project Ice," using biotechnology-based "freezing bombs" to turn low-lying areas of the world into ice ages, triggering a global nuclear winter. Residual radiation caused some areas to become "dead zones," but it also gave rise to the rare resource "radioactive nuclei."

[The new book "The End of the World Begins by Building an Invincible Fortress" has been released, welcome to read it] When the end of the world comes, you need a good vehicle. Motorcycles, cars, armored vehicles, etc. are all weakly exploded. I have a super tank! ...The chariot can not only upgrade the weapon system and defense system, but also improve its form and can fly into the sky and into the sea, and can go anywhere. There is also a chariot shop open, which can be exchanged for various rare items. Weapons and equipment, food and ammunition, evolution potions, evolution fluids, mutant seeds, deprivation potions, etc. are all available. There are also customized alloy puppets, and you can choose the royal sister Loli! (PS: The alloy puppet is not only unparalleled in combat power, but also has other indescribable functions...) In addition, there are many mysterious functions waiting to be developed! ...At the end of the Christian era, a strange explosion swept the world with radiation, bringing the end of mankind to a complete end. Liu Chen was reborn at the beginning of the apocalypse, seizing the super tank system, making up for the regrets of his previous life, and facing the truth of the apocalypse! Fierce and brutal, pushing all the way!

[Apocalyptic Horrors + Migration and Escape + Intelligence System + Sequence + Team Leader]

Su Chen awakened his intelligence system, learned about the apocalypse in advance, seized the company's refrigerated truck for himself, and began his escape with his sister.

The apocalypse has arrived, and natural disasters, strange creatures, and ferocious beasts are rampant everywhere.

Someone set up a base, which attracted more and more ferocious beasts and strange creatures until it was overrun.

It was only then that people discovered that, apart from the sequence, the monsters could not be killed and had to migrate during the apocalypse.

Relying on the intelligence system, Su Chen moved and organized his team ahead of time, thus taking the lead.

He also impersonated a prophet, becoming the leader of the escape team and wielding the power to distribute supplies.

As a result, countless women wanted to climb into his RV...

Post-apocalyptic + Legion + Conquest + Multiple Systems + Confiscating Cheat Codes + Ensemble Cast + No Female Lead Yet [Just Started, Ranking Will Rise] The protagonist begins with a Black Watch armored synthesizer, a full complement of 11,600 men. His mission is to reshape the world by recruiting and capturing various cheat code characters (including but not limited to reborn individuals/system carriers/those with special bloodlines). This book includes numerous system carriers such as Legions/Red Alert/Safe Houses/Zombie Kings/Daily Sign-in... Technology may not be unable to defeat superpowers (Iron Man and Thanos). Protagonist's Abilities (Become Stronger Against Stronger Targets): 【Analysis】When the physical distance to a target is less than ten meters, the protagonist can perform low-level information analysis on the designated target, revealing its essence, including but not limited to key information such as systems, bloodlines, superpowers, and memories. 【Copy】When the physical distance to a target is less than ten meters, the protagonist can perfectly copy the analyzed core abilities without conditions or side effects. 【Enhancement】Abilities copied through this system will receive logical optimization and functional enhancement, and will be available as sub-modules for your use at any time. [Modified] When the physical distance to the target is less than ten meters, the underlying logic of the target's system can be tampered with, changing its usage conditions or triggering mechanism.