Akdang-i Saraganeun Beop

“You have been chosen as a player in the great game to select the next god’s successor, the Mission! Congratulations!”
Seong-Hoon has suddenly fallen into another world to participate in a game to become a god. This other world that is akin to that of a game contains players who cooperate and also kill each other in cold blood…!! Seong-Hoon, a person without an ounce of talent, uses wicked and crude tricks to become an all-powerful player!

(Source: Naver, translated)