I Grind Dungeons Around The World is a Manga/Manhwa/Manhua in (English/Raw) language, manhua series, english chapters have been translated and you can read them here. You are reading chapters on www.mcreader.net fastest updating comic site. The Summary is
Su Mu traveled to a parallel world, where everyone in this world will be forced to enter the game space when they are eighteen years old and become a challenger! Start various types of survival games in space! Hide and Seek! Become the victor..