Facing the Apocalypse of Old

[Cthulhu Mythos, Lovecraftian, infinite-flow, eerie, no female lead or one female lead] The madness of the Old Ones has descended once more. The sea that gave birth to countless universes is here, and the flames of civilization are about to go out. You can choose to record the final histories of these civilizations, or try to save them. At the beginning, the worlds the protagonist encounters are generally limited to planets with human civilizations. Only those who have experienced three world-ending disasters have a chance of coming into contact with alien civilizations. Their appearance will be adjusted somewhat, so the characters in the book can accept them (mainly because I'm too lazy to describe what aliens look like). But I may occasionally introduce what other humanoid or non-human species look like.