South of the Circle tells a well-written, affecting story of the relationship between two university academics, relived in the memory of the protagonist after a plane crash on the way to a research expedition to the Antarctic, alongside also following his attempts to find rescue from the crash. Gameplay is mostly very light, with the core mechanic being dialogue choices through choosing the 'mood' of a response rather than specific lines (for example, fear, empathy or enthusiasm). It's a system that works better than I honestly expected, though only a handful of these choices are actually meaningful to future events.

While it's perhaps disappointing that a greater degree of branching isn't possible, that's arguably outside the scope of what the game aims for and at the overall end, even if the differences in events don't account for much of the time that we see them playing out, they still feel quite deeply meaningful. This isn't a game with particularly lofty aims, but what it attempts it makes a laudable success of.