Survival Story of a Sword King in a Fantasy World 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

Ryu Han-Bin was a normal person who just had been discharged from his mandatory military service, when he was transported to another world. Left to fend for himself, he has given tthe goal of surviving and growing stronger in a desolute world riddled with monsters. The problem is the ‘Guideline’ that was supposed to be his guiding system to survive is filled with errors.