Amazon offers Railway Empire for Xbox One or PlayStation 4 for $19.99 with free shipping for Prime members. (GameStop charges the same via in-store pickup.) That's the lowest price we could find by at least $15.

Note: From Amazon, the Xbox One version usually ships within one to four weeks, and the PlayStation 4 version ships in two to four weeks. (You'll receive an email with an estimated delivery date as soon that information becomes available.)