ER . ▁ ▁The ▁American ▁computer ▁game ▁SP Y ▁Fox : ▁Some ▁Assembly ▁Re quired ▁play fully ▁showed ▁a ▁flying ▁sau cer ▁buried ▁beneath ▁the ▁World ' s ▁Fair . ▁ ▁In ▁the ▁H alo ▁series , ▁ancient ▁human ity ▁was ▁a ▁space f aring ▁society ▁techn olog ically ▁superior ▁to ▁modern ▁human ity , ▁with ▁many ▁world s ▁colon ized ▁and ▁contact ▁established ▁with ▁several ▁al ien ▁species . ▁After ▁losing ▁a ▁large - scale ▁war ▁with ▁slightly ▁more ▁techn olog ically ▁advanced , ▁but ▁more ▁wide ▁spread ▁species , ▁the ▁For er unn ers , ▁human ity ▁was ▁stri pped ▁of ▁their ▁techn ologies ▁and ▁quar ant ined ▁to ▁Earth , ▁their ▁home ▁planet . ▁For ▁mill enn ia , ▁the ▁For er unn ers ▁exerc ised ▁influence ▁over ▁human ity ' s ▁behavior , ▁evolution , ▁and ▁even ▁mem ories . ▁When ▁an ▁invas ive ▁par as it ic ▁species ▁threatened ▁all ▁sent ient ▁life , ▁the ▁For er unn ers ▁eventually ▁decided ▁that ▁their ▁only ▁option ▁was ▁to ▁ster il ize ▁the ▁galax y . ▁Though ▁they ▁established ▁autom ated ▁pres ervation ▁and ▁" res eed ing " ▁techn ologies ▁in ▁order ▁to ▁re est ab lish ▁humans ▁and ▁many ▁other ▁species ▁across ▁the ▁galax y ▁after ▁the ▁ster il ization , ▁the ▁For er unn ers ▁sacrific ed ▁themselves ▁in ▁order ▁to ▁see ▁the ▁plan ▁through . ▁Later , ▁some ▁of ▁the ▁al ien ▁species ▁discovered ▁rem n ants ▁of ▁For er un ner ▁technology . ▁While ▁they