Source: https://www.amazon.com/Left-4-Dead-2-Xbox-360/dp/B002BRZ852/ref=as_li_ss_tl?s=videogames&ie=UTF8&qid=1489055528&sr=1-1&keywords=left+4+dead+2&th=1&linkCode=sl1&tag=nottropics-20&linkId=ae9d24bbf4d2b68fa7f9fe7c9d60eab6