Few strategy games embrace alternate history like Hearts of Iron IV. The World War II strategy game lets players reshape global politics, rewrite alliances, and build unexpected empires. One of the strangest — and funniest — options allows players to restore the Roman Empire under the Pope.
At first, the idea sounds ridiculous. Most people connect the Vatican with diplomacy and religion, not tanks and invasions. Yet in HOI4, players can remove Benito Mussolini, restore papal authority, and turn Italy into a Catholic empire ready to dominate the Mediterranean again.
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How the Papal States Path Works
Italy’s expanded focus tree includes the Papal States route. Instead of supporting fascism, players can shift power back to the Pope and create a government centered on the Catholic Church.
This route unlocks special political decisions and national focuses. One of the key focuses is “Mare Nostrum,” the ancient Roman name for the Mediterranean Sea. Through this path, players can rebuild the Roman Empire by conquering territory across Europe, North Africa, and the Middle East.
The campaign quickly became popular because it mixes serious strategy with absurd alternate history.
Why Players Enjoy the Campaign
Players love the contrast between religion and military conquest. In one campaign, papal Italy might invade the Balkans, fight Britain at sea, or march into Paris under the banner of Saint Peter.
That contrast makes the campaign memorable. Medieval Catholic imagery clashes with modern warfare, creating a scenario that feels bizarre but strangely believable inside the HOI4 universe.
On Reddit and gaming forums, players often share screenshots of the Pope controlling huge territories once ruled by ancient Rome. Over time, the campaign turned into one of the community’s favorite meme scenarios.
Rebuilding Rome Takes Strategy
The Papal Empire path may look funny, but it is not easy. Italy starts weaker than Germany, Britain, or the Soviet Union. Players must strengthen the economy, modernize the military, and expand at the right moment.
Many players attack the Balkans or North Africa early to secure resources and strategic positions. Others focus on diplomacy before starting major wars. The campaign rewards careful planning. One bad decision can ruin the entire run.
The Achievement Behind the Trend
The route became even more famous thanks to a special HOI4 achievement: “Holy, Roman, and an Empire.” Players unlock it by restoring the Roman Empire while following the papal path.
For many fans, this achievement offers one of the most entertaining challenges in the game. It combines strategy, humor, and alternate history in a single campaign.
The achievement also inspired guides, YouTube videos, and long Reddit discussions about the best strategy to rebuild Rome under the Pope.
Why HOI4 Still Attracts Players
The Papal Empire storyline shows why Hearts of Iron IV remains popular years after release. The game gives players freedom to rewrite history however they want.
Some players follow real historical events. Others create chaotic timelines full of strange alliances and impossible empires. The Pope rebuilding Rome fits perfectly into that style.
That freedom keeps HOI4 alive. The game turns history into a sandbox where almost anything can happen — even a Vatican-led Roman Empire stretching across Europe and the Mediterranean.
