Ghost_84
I would like to make some suggestions, since there is still a lot of time left for the plot of the original world, and since the mc lives on earth, he could create a mortal society of his own, create new customs, help in the development, like he can collect plants of different places in the world and help the local population to improve the planting, he can help with knowledge of crop rotation and soil fertilisation, create better tools, since he is a blacksmith, just adapt to the deadly things, and since the mc is a god with a good knowledge of runes and the like, he can take that to mortals, thus creating a society that uses magic and science, in addition to being something cool to help not get bored over the years, with the time it could even help to improve life in general both as a means of entertainment and everyday life.