The World of Fog is small, but harsh. Someone is sure that this is a parallel world, someone considers himself a character in a computer game, someone votes for a branch of the underworld, and for some it is just an object called “Module-317”. No one really understands how people get here and no one has yet managed to escape back into the big world. Life here glimmers only behind a protective perimeter, where the sun shines and you can breathe deeply. Outside the city, in the Fog, only fogmen are allowed to stay for a long time, but they are constantly at risk of becoming “lost”, falling from the claws of fog creatures, or becoming a victim of the confrontation between two human enclaves. What does a simple fogman need to survive in such conditions? Yes, just a little: the ability to make friends, luck, and a higher index.