It is set around the early 19980’s. you will need the The Isle Of Wight (Steam), West Somersest Railway (Steam),The VDL From https://backdatedtrainsim.weebly.com/virtual-district-line.html, The Stroudly A1/A1X Terrier (Steam), GWR Large Prairies (Steam) and The Weardale And Teesdale Network (Steam).
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