Global Examination - Chapter 31:

First World : CampioneCurrent - Second World: High School DxDThird World: ???Reincarnated into the world of Campione! Haru Kasugano, our hero slays gods and ascends as the mightiest Godslayer. He battles powerful God-Kings and Campiones, claiming victory after victory. Whatever it is. [Wealth, Power, Beauty] he has it All. Watch him grow stronger as he travels into new realms like High School DxD and the Fateverse, leaving a trail of defeated gods and captivated hearts in his wake.

This novel is also known as Almighty Video Game Designer

Chen Mo a game designer got sent to a parallel world with advance technology but undeveloped game concepts.

Watch as he redefines the world’s gaming industry with the games he remade from his old world.

- Description from Novelupdates

The formless ancient world was infested with despicable demons. They hunted and feasted on mankind, keeping the human civilization constantly in a weak and suppressed state.

I’m an imperial uncle; his imperial majesty’s uncle.

Once, someone with nothing better to do took a comprehensive survey of the current dynasty, and summed up the imperial court’s three great cancers.

Wang Qin leads in corruption; the treasury is never full.

Yun Tang favours a few, forming cabals; leading to corruption in our politics.

Prince Huai plays with power, and serves as the head of a hundred poisons — thus causing instability to the throne.

When they talk about the most venomous of vipers, the wicked one who plays with power, the biggest cancer of them all, they’re talking about me: this insignificant prince, Prince Huai, Chengjun.

I can only say that I feel rather hapless in the face of these theories.

In truth, I have been ever dutiful, ever devoted, devoid of intention to monopolise power, and possess even less of a heart to covet the throne. In the entire imperial court, I dare say there is no loyal subject more loyal than I.

But, most tragically, in all the realm, the matter of my being a loyal subject is something that not many would believe.

- Description from Novelupdates