One Piece: New Order - Chapter 22: Vice Admiral Sakazuki

In my former life, I dedicated most of my adult life to achieving my goal of exploring the stars. Unfortunately, due to circumstances outside my control, my life abruptly ended leaving my dream unfulfilled. Thanks to the intervention of the Big Guy Upstairs, I was given a chance to achieve my dream though the one who reincarnated me screwed me over. Unlike the futuristic type of world I wanted to start in, I ended up being born in a medieval, magical world as the third son of a regional baron. All I can do now is Dungeon Crawl for ancient technology in the hopes that I find a ship or technology to get me off this damn world!

With divine medical skills in his left hand and supreme martial arts in his right, carrying a century of memories, he was reborn and returned to the city. This life, he vowed to dominate everything, take control of all, and ascend to the zenith of the heavens!

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

Zhang Beichen downloaded a game called “The Empress of the Warring States Period”. He needs to play the role of a famous minister to help his monarch rule the world and become emperor.

He thought it was an ordinary game. In the game, Zhang Beichen tried his best to make friends with the empress, help her unify the seven kingdoms, and achieve different endings.

Until he woke up, Zhang Beichen discovered that he had actually come to the world in the game, and the magnificent empress in the game was standing in front of him!

The empress looked at Zhang Beichen with a cold and glamorous face, and thought: “He is the servant in the Sims who has made great contributions to me, but is rebellious and wants to marry me?”

- Description from novelbuddy