I Became the Tyrant of a Defense Game

Reading I Became the Tyrant of a Defense Game manhwa, I Became the Tyrant of a Defense Game manga with alternative name: Tyrant of the Tower Defense Game / 디펜스 게임의 폭군이 되었다
With Description: “Protect the Empire” was unbeatable for over a decade, but streamer “Mr. Gamer Geek” defeats it on the hardest mode. He’s suddenly transported into the game world and finds himself in the body of Prince Ash. He soon realizes the consequences of his actions in the game, including sacrificing teammates for victory. To make amends, Ash vows to keep his team alive while using his skills to survive the monstrous dangers. The mystery remains, who brought him to this world and why? Ash must survive to uncover the truth.