It is Earth's southernmost continent, encapsulating the South Pole. It is situated in the Antarctic region of the Southern Hemisphere, almost entirely south of the Antarctic Circle, and is surrounded by the Southern Ocean. After the Pangaea supercontinent split, Antarctica moved south, eventually reaching the southernmost point in the World, the south pole. Because of this, Antarctica is now almost entirely covered in thick ice sheets and subzero temperatures. On average, is the coldest, driest, and windiest continent, and has the highest average elevation of all the continents.
Before 2052, Antarctica hosted a secret VersaLife facility located on the Shackleton Ice Shelf, for testing materials in extreme conditions, research transgenics and other secret experiments. In 2052, after JC Denton merges with Helios, defects in JC's nanite architecture resulted in an imperfect merge, unable to control the power of Helios and leading to turmoil between JC mind and Helios, one cannot complete the other. After he revealed his ideology of equality for all to his brother Paul and Tracer Tong and before he can no longer maintain control, his allies transported him to Antarctica where he can seek peace and to hide him while waiting to find a solution, where Helios with JC's nanites erected a sanctuary around the former VersaLife facility for himself, a living technological building, infused with his psyche and only those with the same DNA of JC can access.
In 2072, the Knights Templar, headed by Billie Adams, went to the Shackleton Ice Shelf to find and kill JC Denton. A tribe of sentient, friendly grays live on the Shackleton Ice Shelf, having escaped from the VersaLife facilities sometime during the Collapse. Alex Denton travels to Antarctica through a teleporter at the Black Gate Ruins, which can only be used by people of JC Denton's lineage, in order to wake up JC and allowing his merged with Helios.