From GameWatcher: “Let’s face it: we’re not getting that many post-apocalyptic grand strategy games and the chances of Fallout making the jump to this admittedly niche sub-genre is quite minuscule. But that’s no reason to despair, as the team behind Hearts of Iron 4’s Old World Blues mod has found a solution for our woes.

HoI4’s Old World Blues mod trades World War II for Fallout’s post-apocalyptic future. Set 6 years before the events of Fallout: New Vegas, you can take the helm of popular factions like the New California Republic, Caesar’s Legion, but also more obscure and new ones, then proceed to paint the map in your color.”

Source: N4G PC Hearts of Iron 4's Old World Blues Mod Trades World War II for Fallout's Post-Apocalypse