The Legendary Mechanic 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

Han Xiao, a veteran player of the game "Galaxy" died unexpectedly in the middle of doing a leveling request. He was transmitted to the game world ten years earlier and became an NPC with a player's panel and was reborn in the base of the game's villain. In order to survive, Han Xiao resolutely chose the "Mechanic" occupation and concentrated on cultivation. Familiar with the iterations and rules of multiple versions of the game, he vowed to lead the army of machines, overthrow the villains, and rise from scratch to become the strongest.