Obsessive Tycoon and His Swan Girl - Chapter 39 - The Suffocation that Cost a Life

Bai Aoxue, the best mercenary in the 21st century, is accidentally sent back to the Chengxi Dynasty in Great Continent due to an explosion in her mission, and trapped in the first daughter of Prime Minister. After her rebirth, she is set up by her father to marry the 5th prince Jun Yeyan who wears a mask all day long.
In the face of bloodthirsty enemies, discord between brothers, collusion among courtiers and invasion of enemy state, can Bai and Jun resolve the crises? What will happen to their political marriage? How will the fierce battle for the throne end?
With many twists and turns, the book brings you to experience palace revolution, love and hatred thousands of years ago.

- Description from Novelupdates

“The Earth was chosen by the gods, and all humans were sent to another world, participating in a 'Dark Lord and Hero's game'.Billions of humans played the roles of 'Dark Lord' and 'Hero', each needing to choose their initial race at the beginning.Ethan Jackson was matched to the 'Dark Lord' faction and became a Dungeon King.To his surprise, he found that he could see hidden information that others couldn't...[Goblin Dark Lord] Low-level Bloodline, not recommended.[Stone Giant Dark Lord] Mid-level Bloodline, not recommended.[Magical Treant Dark Lord] High-level Bloodline, recommended.[Golden Divine Dragon Dark Lord] Top-level Bloodline, highly recommended!...Heroes coveted Ethan's dungeon, and the treasures within it attracted numerous adventurers.Among them, there were young Lady Knights, the saints of the royal capital, tsundere female magicians, and innocent but naive female priests...Ethan could never have anticipated that.As the game had just begun, the dungeon's Goblin guards caught a Lady Knight and offered her to him as a tribute.”

Alex was an ordinary person with the dream of one day being transmigrated to a magical world.

But what he didn't expect is that he would be transmigrated to a world much more than that, a world he knew very well, but instead of being given a system that would empower him, he was given a system that allowed him to make games, and the more people played, the more powers he would get.

Tony Stark: I hate this! I can do in real life everything this Watch Dogs guy does, but why can't I stop playing?

Hulk: HULK HATES DARK SOULS!!! HULK SMASH DARK SOUS ARRRHHHHGGG!!!

Nick Fury: If any agent can't complete the Hitman game by next week, that agent will be fired from the Shield!

A world of superheroes, but who controls everything is "only" a game developer.