Apocalyptic Thief 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

A storm of the universe brought species mutations. The poison, undead, giants and monsters in the city roared as they waved their weapons. As the beasts in the woods fought over territorial rights, humans, too, awakened an ability known as star power… Zhou Zheng, without star power, traversed to this apocalyptic world. Using the abilities of the thief character in the game, he destroys the darkness and fog, seeking supreme power!