“Up, down, up, down, left, right, left, right, haha, I can take twenty shots,” John said disdainfully to the gang members who were shooting at him.

A model 21st-century young man with impeccable morals accidentally finds himself in the 1899 West of Red Dead Redemption 2's story mode.

What if Poland had chosen a different path before World War II?

What if communism and the national soul are not incompatible, but rather forged into a sword of revenge?

Poland in 1936 was not destined to be a lamb to the slaughter. Lech Sowa, a young cavalry officer bearing an ancient noble surname yet harboring fervent ideals, saw a third possibility amidst the shadow of fascism and the decay of the old world. He resolutely "defied his ancestors," transforming his family heritage into the capital of an uprising. With exceptional eloquence and an iron will, he built an army from scratch—the Polish People's Self-Defense Army—a true people's army.

This was not a simple red wave. Lech's "Polish People's Communism" was rooted in the soil of national salvation, blending chivalrous honor with internationalist ideals. He navigated between cunning Moscow, arrogant Berlin, and a bewildered West, fighting for a glimmer of hope for the nascent regime in the cracks.

However, this was only the beginning of a legend. While the world believed Poland was already a vassal state of the Soviet Union, Lech's gaze was already fixed on the future. Deep in the Carpathian Mountains, a top-secret project codenamed "Prometheus" was quietly launched; and the apparent obsession with magical weapons like the "Nazi Bell" was merely a carefully woven smokescreen. When Poland's nuclear thunderclap exploded on the Baltic coast, and when bombers carrying the "Knight's Sword" leisurely flew over the Korean Peninsula, the world realized with horror that the game had already been completely overturned by this Central European knight.

From the ruins of Warsaw to the battlefields of Stalingrad, from the flames of nuclear explosions to the covert struggles of the Cold War.

Apocalypse tanks gallop across the plains of Siberia

Black Hawk fighter jets wreak havoc over the island nation

Dark clouds gather over Washington

In the southwest, nuclear bombs with long tails flew into the distance.

Countless umbrellas slowly fall from the sky above New York

…

Huali created a general group of 1,000 people: 128857699

VIP group: 1267333 (subscription or fan verification required)

The title of the book is Knock on the Door!!!

Apocalypse + Red Alert system + Iron Torrent + Dual protagonists + Superpowers + No Mary Sue + Ensemble cast

A true torrent of steel, the thrill of crushing zombies, the satisfaction of building a base, superpowers that are not invincible but diverse, no scheming or infighting, just the most exhilarating war.

The protagonist rises from a small county town, starting by retaking the county town, then the city, then the province, from a dozen people to hundreds, thousands, and finally an army of tens of thousands, step by step, growing into the overlord of Blue Star.

A cluster of meteorites carrying a virus struck Earth, bringing immense disaster to this planet with 30 billion inhabitants. 70% of humanity turned into zombies, while a small number evolved extraordinary abilities. Animals and plants worldwide also underwent evolution. Can humanity emerge victorious from this catastrophe? Without further ado, please proceed to the main text.

Transmigrating into another world as a lord, he immediately finds himself in a desperate situation where everyone wants to kill him.

Fortunately, the Red Alert system awoke in the midst of the crisis.

When magical chants meet the roar of guns, when knights charge into the face of a steel torrent.

Watch as Yang Guang leads his army to make this high-magic world tremble beneath the tracks!

A viral outbreak swept the globe, cities fell, and once-prosperous cities became zombie-infested infernos. Lin Chen, on the verge of despair, unexpectedly awakened the Red Alert system, gaining initial power enough to sustain his hope of survival from the start—an Allied base vehicle, well-equipped American soldiers, a powerful Grizzly tank, and the first funds to activate his base.

In this perilous post-apocalyptic world, he is no longer alone. The precise fire of American soldiers forms the first line of defense, the tracks of Grizzly tanks crush the corpses of zombies, and the massive Allied base vehicle is the foundation upon which he rebuilds order and fights against the apocalypse. Lin Chen must rely on the system to continuously expand his base, unlock stronger units and technologies, and, amidst the siege of zombies and the suspicion of survivors, use steel and artillery to tear a path to tomorrow for himself and those around him.

[Red Alert System + Invincible Flow + Unlimited Explosion]

Su Xinghe, who has traveled to a parallel world, learns that the apocalypse is imminent in a week. What should he do? Don't panic! Fortunately, he's connected to a Red Alert system. By selling the system's advanced technology, Su Xinghe earns a fortune to invest in military expansion. What? The apocalypse is coming? No worries, I've already built millions of troops. Watch how I quickly eliminate the zombies, unify the world, and then venture into the interstellar space, advancing from a first-level civilization to a ninth-level civilization, and ultimately to the highest level of civilization.

The protagonist Leon travels to the dark universe of Warhammer 40,000 and possesses the body of a dying Imperial soldier, Kane. In desperation, he activates the "Red Alert" system and obtains an MCV (Main Base Vehicle) that can be deployed into a base.

However, the initial units provided by the Red Alert system (such as Conscripts, GIs, and Grizzly Tanks) are vulnerable to Space Marines, Tyranids, and Chaos Daemons. In order to survive and thrive, Kane must utilize the unique advantages of the Red Alert system:

1. Asymmetric Warfare: Utilize Red Alert's rapid deployment, low-cost mass troop growth, and subterfuge tactics (such as engineer occupation and spy infiltration) to counter technologically superior enemies.

2. Core Advantage—Tiberium Crystals: The crystal seedlings provided by the system absorb the energy of the Warp and grow. Their radiation can purify and hinder the corruption of Chaos on a large scale, transforming desolate and deadly areas into "purification zones" and resource production areas. This "pure land" will become the foundation of his foothold in the dark universe.

3. Capture and Replication: The core feature. While Kane can't independently develop 40th-century technology, he can use his Psychic Control to capture enemy units (from Ork lads to Starships) and mass-produce them in a Replication Center. This allows him to continuously "copy" and absorb enemy technology, gradually expanding his own army. From replicating Orks and Tyranids to analyzing Imperial tanks and Space Marine power armor, he ultimately builds a powerful army that blends Red Alert's advanced technology with the might of 40th-century forces.

4. Strategic deterrence with superweapons: unlimited nuclear bombs, lightning storms, iron curtains, and teleportation

Ren Zhile transmigrated, taking the Red Alert: Mental Omega System with him to Terra.

Of course, it's neither Rhea nor Holy Terra.

It's Terra.

In this place, Oripathy ravages the land, war rages on, and natural disasters rage.

But don't worry, he has a system that allows him to deploy units within Mental Omega.

With these powerful units, they should be able to fight against any nation in Terra, right?

Koschke: "When he captured Talulah, I thought he was after Talulah, but when I saw a few bald men with strange helmets coming over, I should have realized he was after me!"

Traveling through parallel worlds, relying on the Red Alert system and the Devouring System, eliminating zombies to level up, uniting survivors, fighting alien beasts, and establishing an eternal kingdom. This story is purely fictional; please read rationally!