The world traveler from the future

Charles Barlow was an engineer in the Empire, until one day he woke up inside a cave. His artificial intelligence companion still with him, he finds himself surrounded by monsters and people from old fantasy literature. The world itself following strange rules of magic and cultivation. Technology acting as if it was an artifact. But he soon shook himself out of his stupor, a goal in his mind. Make this world into the perfect colony of the Empire, find a way to open a permanent portal, and finally annex this land.