According to Fourm's founder, Deanna Van Buren, they developed the various man-made and cultivated areas based on the concept of three different civilization periods, with later civilizations building on the structures from earlier ones and repurposing these structures as needed.
据Fourm创始人迪安娜·范·布伦（Deanna Van Buren）所述，他们基于三个不同文明时期的特点开发了各种人工和耕地区域，后期的文明建立在较早文明结构之上，并根据需要使用这些结构。