The Sinking City, developed by Ukrainian outfit Frogwares, casts the player as troubled private eye Charles Reed. After a poorly-remembered encounter with (maybe) Cthulhu during his Naval service in World War I, Reed has had certain abilities which aid him in his investigative work, but also suffers from nightmarish visions which have sapped his sanity – to the point where be spent a chunk of time after the War confined to an asylum.
Now it’s the mid-1930s, and Reed has not only discovered the existence of other people suffering from the same visions as him, but he’s also found a strange link between them – they’ve all gone missing in the general vicinity of Oakmont, a Massachusetts city which has curiously managed to avoid being put on many maps. Oakmont is an insular, xenophobic town where lower is held in the hands of a few great families who conduct themselves as little more than gangsters. It’s also faced various upheavals in recent years. First, there was the influx of refugees from Innsmouth, fleeing the Federal raid on that town; then there was the utter disaster of the Flood, which even years later has left significant areas of the poorer section of the city waterlogged. The richer districts are not immune from the Flood’s effects either, especially when those consequences include roving monsters which seem drawn to sites of atrocity or extreme negative emotion.
Soon after Reed arrives he becomes embroiled in the affair of the Throgmorton expedition – a jaunt to the bottom of the sea near Oakmont which, in its search for the causes of the Flood, has stumbled across something appalling. Is there some connection between the Flood, the expedition’s shocking discoveries, and Reed’s visions? And if there is, is there anything Reed can do to resist this terrible confluence of forces?