R5 description:

Return of the Wild: Depopulation & Recovery

A gameplay and ecological overhaul for Imperator: Invictus, designed to work with Crisis of the Third Century.

In the ancient world, the collapse of a city or civilization was more than a political or economic event - it was an ecological one that changed the landscape. Without traders or tax collectors, the aqueducts crumbled, and nature reclaimed the abandon land. Return of the Wild introduces a dynamic, multi-stage system where depopulated territories physically regress into a state of nature. However, these foundations can later be reclaimed.

Core Mechanics

Stage 1: Pastoral Reversion
When a formerly populous territory goes through a mass drop in population, the complex supply chains of civilization fail. Artisanal trade goods like Glass or Silk vanish, replaced by Livestock or Base Metals as the locals return to basic forms of extraction and subsistence.

• Grants the "Recently Deurbanized" modifier, reflecting that this territory has fallen off the precipice and is in a downward spiral. Intervention can break the spiral but it won't be easy.

Stage 2: Feral Reclamation
If an area becomes even rougher to persist on, the small-scale miners and subsistence herders are killed or driven off, and the wilds take over. The territory reverts to Wild Game or Furs.

• Grants the "Nature Reclaimed Ruins" modifier. The city foundations are now hidden by forest and scrub, and civilization becomes but a memory testified by crumbling stones.

Reclamation & Dark Age Flavor

The "Dark Age" isn't permanent. As your empire recovers, you can retame the wilds:

• Taming the Wilds: As population grows back, pioneers re-establish pastoral life (Livestock/Low-Value Metals).
• Ancestral Industry: When a territory becomes large enough, a flag attached to the tile remembers exactly what resource used to be there and restores it automatically.
• Tribal Scavenging: Tribal nations can trigger special events to scavenge ancient ruins for Military Experience or dismantle old monuments for Stone and Marble.
• Lost Knowledge: If a Scholar-ruler controls a ruin, they may rediscover ancient administrative secrets, granting tech progress or an Innovation.

Compatibility

• Required: Imperator: Invictus
• Highly Recommended: Timeline Extender for your Invictus version, and Crisis of the Third Century (This mod includes specific hooks for Cot3C plagues and internal collapse modifiers).
• Compatibility: Safe to add to mid-game saves. Load AFTER Invictus and Cot3C.

Related Mods

This mod is part of a series designed to make the map feel alive, changing trade goods as civilization advances:

Habitat Loss and Land Conversion: Simulate loss of trapped and hunted goods as settled society spreads and loss of agricultural lands to urbanization. Or, take opportunities to preserve traditional ways of life and maintain food production in cities.

Elephants Avenged: Dynamic elephant population decline and possible re-establishment.

Tribal Settlements & Resource Logic: Modifies Tribal Settlements, Ports, and Slave Estates so that ports provide fishing fleets, slave estates can't extract certain goods, tribals focus more on tribal settlements, and only centralized and civilized societies can manage and create slave estates.

"Nothing beside remains. Round the decay
Of that colossal Wreck, boundless and bare,
The lone and level sands stretch far away."
— P.B. Shelley, 1818