User blog comment:Precurser199999999/i give facts/@comment-37866774-20181219202531/@comment-1955501-20181219205558

Below Zero started out as DLC but the developers decided to make it into a full game. It will be released separately, and will most likely cost just a little less than the original game. It will be available for Early Access (playable but not finished) in early 2019.