Mmepe nke egwuregwu mbụ sitere n'aka onye okike BioShock ụlọ ọrụ Ken Levine hiwere na 2014 nọ na “hell mmepe,” ka Bloomberg siri kwuo. Mgbe afọ asaa gachara, egwuregwu ahụ gaara ekpochapụ kpamkpam ọtụtụ ugboro wee tụgharịa n'ụzọ dị iche.
Nsogbu nke ọrụ a, dị ka ọtụtụ ndị ọrụ nke ụlọ ọrụ Levine, nke a na-akpọ Ghost Story si kwuo, dabere na Levine n'onwe ya. Bloomberg dere nke ahụ dabere na mkparịta ụka ya na ndị ọrụ iri na ise na-amaghị aha, ma ugbu a na nke mbụ. Dịka ọmụmaatụ, Levine agaghị enwe ike ịkọwa ọhụụ ya nke ọma ma ọ gaghị anabata nzaghachi sitere n'aka ndị ọrụ. Ndị ha na ya rụkọrọ ọrụ na-akọwa ya dị ka “onye nwere ọgụgụ isi pụrụ iche,” ma na-akpọkwa ya “onye na-achọ izu okè nke isi ike” nke nwere ego siri ike. Ọ ga-achọkwa nnukwu ihe n'aka obere otu. Enweghị oge ntọhapụ mara n'ime ma ọ nweghị aha maka egwuregwu ahụ.
Na 2014, Levine kwupụtara na ọ na-emechi egwuregwu na-adịghị mma, n'okpuru nke o mere BioShock, ịmalite ụlọ ihe nkiri ọhụrụ, obere. Tupu nke ahụ, ọ chọrọ ịmalite egwuregwu na-akpali akpali nke akụkọ na-akpali akpali, n'agbanyeghị na ọ dịghị ozi ọzọ ewepụtara kemgbe ahụ. Take-Two Interactive gara n'ihu na-eje ozi dị ka onye mbipụta ụlọ ọrụ ahụ, mana Levine agaghịzi etinye aka na aha aha BioShock. Dabere na Bloomberg, Take-Two ka nwere akụkọ Ghost ugbu a, n'agbanyeghị enweghị nsonaazụ ya n'ime afọ asaa gara aga.