The slave guild : I'll beat this bug-filled new world until the deadline! 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

【Wake up, chosen one--！】The game developer Minato awoke to a mysterious voice. He found himself holding a sword and wooden shield... and was soon attacked by poisonous slimes! 「But I was just at the company!」Somehow, Minato ended up in the fantasy world of the game he was developing, Bravers. Now trapped in an adventure filled with enemies with nonsensical power balances and unexpected problems, Minato must navigate through this low-budget, bug-filled game. Can he beat it and return to the real world before the deadline?