I became a god by treasure hunting after arriving 500 years early - Chapter 41 - 38: Making a Piece of Equipment

The youngest Wiseman of the continent, Chu Tian, has traveled 30,000 years back in time to the age of antiquity due to an accident.

This is a prosperous era. Rare herbs, minerals, treasure relics and monsters can be easily found throughout the land.

However, this is also an undeveloped era. Communications, traffic, martial arts and technology are in its early stage of development. Prosperous cities lack lighting while its citizens are uneducated.

Our decisive MC using his future knowledge creates Magic powered light bulbs, magic powered telephones, magic powered cannons, magic powered computers, artificial intelligence, psyche internet. 30,000 years worth of knowledge allows him to create miracles and shine brightly in this era. Allowing him to conquer the land and sit firmly on the throne of the 10 realms.

- Description from Novelupdates

One day, Luo Jian woke up from his sleep and found himself in a locked chamber where the door and window were all sealed. A note with a few lines written on it was tacked to the wall: “Escape from this room within an hour, otherwise, you will die.”

There is a sequel called Reincarnation Night (轮回之夜) that takes place in the same universe but has different main characters

- Description from Novelupdates

When the goddamn story leaves you no choice but to walk the path of the villain,The heroes aren't enough to save the world, as the calamity ultimately kills everyone and everything.Then, only by becoming the demon king can you survive, and only the demon king can save the world, but how?Of course, by conquering every other race, obviously.Can Axel become the demon king and survive, maybe save the world in the process?

The spring fountain town of miracle that heals anything, Polka. In the hometown of memories, with my dear parents, there was a figure of a half-elf girl who swore to become my female slave.

Repeating such a memorable talk every time he drinks alcohol, 25 years old Andy Smeyson is a former blacksmith’s apprentice and an innocent crossbow soldier. Andy is surrounded by nice companions and competent and sexy bosses, which is different from what he had thought when he was a child, but this was a cozy life. When the half-elf girl suddenly appeared in front of him, he will jump into a furious destiny. Andy, who is weak but courageous​ and clever will meet a lot of different race ladies such as elves, half elves, dark elves, loli dwarves, dragon girls, beast girls and make them his female slaves one after another. The horny adventure started from a half elf girl who doesn’t stop liking him will eventually become a legend ──.