Welcome to the Official Release thread for Before Kerbin. Before Kerbin is based on the Stock solar system, but 2 billion years ago in the past. This mod will replace your solar system, I advise beginning a new save. Overview: This mod aims to add a completely new adventure as you begin on Eve (which has Kerbin's properties for ease) and explore and uncover the secrets of the old stock planets. There is lore for you to uncover on the detailed planetary surfaces. This mod a