Nightmare Game is a Manga/Manhwa/Manhua in english language, Manhua series, english chapters have been translated and you can read them here. You are reading chapters on www.mgeko.cc fastest updating comic site. The Summary is

When Zhi Ye lost his passion to live, he was forced to be involved in a terribly scary “Nightmare game” at the funeral of his former partner. Strange life and death is the most common childhood game? If you lose, you will die. In order to survive, Zhi Ye has to participate in the game again and again, looking for the truth of the Nightmare between life and death. Can he succeed?