You Don’t Decrypt At All, Do You? is a Manga/Manhwa/Manhua in english language, Action 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

The strange game “Paradise” has invaded the real world, randomly choosing humans as players and forcing them to play a real-life escape game. Zhu Wen, one of the players, is reminded that there are no revives, no way to make any alternate accounts and no guides. The only way to the continue living on is to continue the difficult decryption according to the game’s prompts. Zhu Wen finds a match, and ten minutes later, no matter where he goes, the monster npcs wail and the game’s map turns into a barren wasteland, filled with bugs.