DSOGaming writes: “Two days ago, we informed you about the amazing fan prequel mod for Fallout New Vegas, Fallout New California. And today, we are presenting you another amazing Fallout New Vegas mod that seamlessly merges Fallout 3 and its DLCs into it.”
Source: N4G PC Tale of Two Wastelands is a mod that seamlessly merges Fallout 3 and its DLCs into Fallout New Vegas