Come to the Don't Starve world and awaken the ability to collect and synthesize.

Tang horizontal sword + mantis blade arm = sharp Tang horizontal sword

Sharp Tang horizontal sword + dragon scale = Tang horizontal sword with dragon power

Tang horizontal sword with dragon power + dragon horn = Dragon Slaying Sword?

...

Synthesize wood to get a campfire.

[Campfire (green): Firelight to ward off evil spirits, wood fuel, cooking]

Campfire + RV = Wood fuel base vehicle.

Wood fuel base vehicle + tank = mobile base.

Mobile base + helicopter (or jet) = sky fortress?

This world has experienced a century-level disaster. Some people have been sleeping in the shelter for hundreds of years. When they came out, they were completely unrecognizable. The water resources in the world have been exhausted for some reason.

Yuuji Sakai, the usually vacant and somewhat weak protagonist, lives an ordinary life until the sudden appearance of a monster disrupts his ordinary life. Under the setting sun, Yuuji is suddenly attacked by an alien monster that transforms human "existence" into spiritual fire and then devours it.

At this time, a girl who called herself "Flame-haired and Burning-eyed Slayer" appeared and rescued Yuuji from the monster's mouth. Yuuji Sakai named her Shana based on the name of her large sword.

She told Yuji that his life was about to end - it turned out that outside this world, there was another world called the "Red World". In order to realize their ambitions, the people there took away the world's original power, the "power of existence", from humans one after another, and Yuji was one of the victims.

After the Crimson Apostle took away the "Power of Existence",...

Yi Heng transmigrated into the messed-up Naruto world, replacing the original Uchiha Setsuna. He originally wanted to change the fate of the Uchiha clan, but found that he had no strength, no power, and no voice. After losing an eye, he became an egoist, resorting to any means to achieve his goals, cruel and ruthless.

In this time-traveling era where luck strikes occasionally, Pei Guang finds himself in luck. He then discovers he can share a professional talent with countless other "me"s. Ultimately, Pei Guang becomes invincible across countless worlds.

Xia Xuan, a fan of Douluo Continent, arrived in the world of Douluo with his memories intact. Fortunately, he lived in the same era as the future Tang God King, meaning the divine lineage hadn't been severed. He awakened his martial soul form independently, and it was a complete form. A sudden realization dawned on Xia Xuan: indeed, the soul is part of the physical body. (He doesn't follow the third brother, developing independently.)

Transmigrated into Itachi Uchiha's older brother, he was no match for the Third Hokage, nor could he defeat his own foolish younger brother. How could he possibly avert the massacre of his clan?! After awakening his Mangekyou Sharingan, Uchiha Yoru finally found the true way out for the Uchiha clan. Run! Run as far as possible! Thus, the protagonist led the Uchiha clan away from Konoha, that wretched place. He guided the Uchiha to learn Haki, eat Devil Fruits, and wield Zanpakuto... spreading the Uchiha's fame throughout the world. Hiruzen, now let's talk about the "Will of Fire," it's your turn to burn!

In the Marvel universe, having just clashed with Mephisto, he's fortunate to be able to virtualize countless worlds and gain the abilities of those he virtualizes. "My first virtual world is Uchiha Sasuke?" "Come on! Sasuke, feel the pain!" While virtualizing one world. "I need to play it safe." Many years later. Virtually nurturing countless worlds, possessing the power of all realms... "Thanos? He's no match for me! Let death come!"

Good news, I've transmigrated! Bad news, I'm in a secret room! Transmigrated into Douluo Continent, becoming Qian Xunji, I happen to be in a secret room, before Bibi Dong does anything irreversible. Just as Qian Xunji relaxes, Bibi Dong's words plunge them into an irreversible situation. What a disastrous start! [Congratulations, host, for completing the character's landmark event. System connection successful…] [Host will break through level restrictions and infinitely increase soul power level!] [Host will increase soul power level by one level for each day of check-in. Every ten days of check-in, there is a chance to receive a critical hit, obtaining soul rings, soul bones, self-created soul skills, and other generous rewards!] Fortunately, I obtained the check-in system; Qian Xunji…

Both Shi Qiu's time travels are extraordinary.

One became a member of the Uchiha clan in the Naruto world, and the other became a member of the Pirate King's crew in the One Piece world.

The Naruto world.

Uchiha Shikichi wanted to change this messed-up ninja world, and his first step was to seize power within the Uchiha clan and occupy Konoha...

One Piece world.

Shi Qiu is a true pirate who abides by the rules of the pirate world and pursues power, fame, and wealth.

From a crew member to a legendary pirate, he gradually grows stronger and more powerful, ultimately achieving his ambitions...