[Multiple worlds + collector's mentality + base building + female protagonist (non-human) + late-game troop buildup + system that's just going through the motions]

Ostro, a transmigrator, looked around and thought he had been reborn into a high-tech era, until he discovered Terra, Eldar, the Martian technological world, and the intelligent legions in his memories, and then he burst into tears.

Good news, we're in the Golden Age (dark technology); bad news, the Iron Man rebellion hasn't happened yet; good news, my parents in this body have some assets on Mars; bad news, they're both dead and I just cried myself to death.

Until the system delivered the gift pack, making me feel invincible with the cheat, and then the system, having delivered the gift, simply left.

At least it gave Ostro some hope, didn't it?

then:

Cult of Mechanics: How does he always manage to retrieve the complete STC template? He must be a Chosen One of Ohm Messiah.

Primal: A powerful, loyal, and resource-rich sage. We should try to get along with him. He has no other flaws except that he sometimes likes to steal the power armor from his minions.

All Astartes: Do you still want the power armor I just DIYed? You promised to trade it for 10 Terminators, can you still do that?

Tarasin: You're stealing my loot! Fine, you took my spoils, but how did they end up in my house?

(This is a new book by a new author, please forgive any shortcomings!)

[Natural disaster + mass production of troops + no female lead + decisive killing + four races of heroes + savior] As usual, young Fang Yun finished a game of Warcraft III, and the water cup next to him inexplicably spilled on the keyboard. A burst of lightning illuminated the dormitory, and Fang Yun regained consciousness.

"It's over! Five hundred worlds!"

It turns out that Fang Yun has arrived in the Warhammer 40k era.

So Tzeentch! Khorne! Nurgle! Slaanesh! And that false emperor sitting high on a golden toilet!

Let the Scourge send you on your way!!!

[Apocalypse + Mutant Species + Superpowers + Space + Transformation + Multiple Male Leads + Time Travel + Grand Worldview + Strong Male and Female Leads (Combat Power)] Mutant species invade, Earth's tectonic plates tear and splice together, and humanity mutates globally. Chen Qian, after three years of time travel and killing countless monsters, finally escaped from the no-man's land. Before she could even reunite with her fellow villagers, she was assigned matchmakers by the Mutant Association! Five of them! Chen Qian looked at the photos, then at their dowries. I'm in!!! Fifteen years into the apocalypse, humanity has dwindled to 500 million, barely surviving on this continent. Perhaps those who cross space can bring new hope to this land. A textbook of male virtue, welcome to join. (A female protagonist with a growth-oriented world background. Not a female-dominated, non-traditional matriarchal society.)

Ma Ran, playing the role of an ability user.

In order to save the earth, he gradually became a master of acting, with countless aliases, each with its own unique style.

The sword cleaves the Demon Mountain, the Seven-Spinning Sword Sect, and the sword master Lin Qiubai!

Tearing apart mechs with bare hands, the Blood Lotus Demon Sect, the arrogant Demon Prince!

Thunder shatters the heavens, wondrous magic of the immortal realm, Zhao Guanlan!

The game's main god, Xuan!

He manifests his divine abilities in public, leading the trend of the times; he lends his support behind the scenes, steering the course of civilization!

QQ group: 858112973

Jiang He transmigrated to the world of Ultraman Tiga ten years ago and obtained a lottery system! However, ever since he drew a weakened version of Dark Tiga ten years ago, the system has fallen into a deep sleep. To protect himself, Jiang He had no choice but to study hard and join the GUTS team, becoming a member! Megumi: "Everyone, what do you think we can do to awaken the Titans?" Jiang He: "What's there to say? Just boil Daigo into soup, and the Titans will awaken." Megumi: "???"

Zhou Ke transmigrated to the Land of Light universe and became Ultraman Jiuka, Ace's older brother, Zoffy's sworn brother, and a member of the Ultraman team. On the stage for the Ultra Star Medal, Jiuka addressed the assembled Ultramen with a passionate speech: "Five years ago, to revitalize the Science and Technology Bureau, I infiltrated the Space Garrison, honing my combat skills by day and secretly conducting research at night… Although I became the Chief of Staff of the Garrison, deep in my heart, I never forgot my glorious mission!" "Today, the time has come! Let us join hands to overthrow the tyranny of Shafulin! Glory belongs to the Science and Technology Bureau!" Zoffy: "???" [Not Ta-chan]

This is a surreal game where all races in the universe play together online. No equipment is needed; anyone who is 10 years old or older will automatically be given an account and can enter directly in real life.

The attributes, equipment, and skills acquired in the game can almost all be synchronized with reality.

The original owner accidentally offended a powerful alien third-generation heir, was cursed and became a useless player. His wife abandoned him and took their child away, his family expelled him and kicked him while he was down, and his relatives and friends betrayed and cut him off. A veteran fisherman fishing in the wild on a graveyard inexplicably transmigrated here.

The previous incarnation died with resentment, but unexpectedly left behind a wondrous tree in his inventory. As long as it absorbs experience, it can grow with him, and at each stage it can bear all kinds of magical fruits with incredible effects.

Eligible players will automatically become companion players after consuming the fruit, and will receive additional rewards with each level up...

[Unique Law] + [Mastermind] + [Transcendent Source] Li Lin was reborn on a parallel Earth, expecting a mundane life. However, one morning, he discovered that the monsters he'd imagined in his dreams had invaded reality. In the Japanese archipelago, Godzilla landed at the Fukushima nuclear power plant, tearing apart the reactor's lead-steel shell and devouring the nuclear fuel. In Washington, D.C., the Alien Queen trampled the monument, her alien form sweeping across Capitol Hill like a black tide. In the Siberian permafrost, the Night King broke free, awakening a million-strong army of White Walkers, accompanied by blizzards, their advance aimed directly at Moscow. Meanwhile, in the Pacific, a thick black fog had invaded the coastline, and Gatanothor, the ruler of darkness, was awakening. ...Looking out the window at the impending destruction of the world, Li Lin, just awakened, innocently said, "It really has nothing to do with me..."

In the distant 41st millennium, countless races clashed within the galaxy. The ravenous Devourer had extended its tentacles here, the former galactic overlords were gradually awakening, and the whispers from the warp grew ever stronger. Lin Yuan, by accident, arrived in this cesspool-like universe. Watching the heroes and warriors battling it out in the galaxy, he was filled with despair. "I was just joking, I really didn't intend to serve the Emperor." Good news: Lin Yuan acquired a system. Bad news: He resurrected in the Undercity, and the first thing the system summoned was the Zerg from StarCraft II... Lin Yuan looked at the Zerglings and cockroaches hopping around him, and the Xenomorphs circling above his head, his despair deepening. "Damn it, is this really not Tzeentch's blessing?!"