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Terrain
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Every region on the map carries one terrain tag. Terrain decides which of the mod's competing land-use chains you may build (farms, irrigated farming, rainfed farming, the four pastoralism chains, qanats, marsh reclamation), and several of them carry a standing penalty.
| Terrain | Regions | Builds | Blocks | Effects | Units | Terrain | Regions | Builds | Blocks | Effects | Units |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Desert | 0 | 4 | 9 | 5 | — | Floodplains delta | 0 | 5 | — | — | — |
| Forest | 0 | 8 | 10 | 1 | — | Grassland | 0 | 8 | — | — | — |
| Hills | 0 | 5 | 3 | 5 | — | Karst terrain | 0 | 4 | 7 | 1 | — |
| Mountain valley | 0 | 5 | 1 | 5 | — | Mountains | 0 | 4 | 9 | 9 | — |
| Plateau | 0 | 5 | 1 | — | — | River valley | 0 | 5 | — | — | — |
| Small islands and rocky coast | 0 | 5 | 5 | — | — | Steppe | 0 | 4 | 6 | 1 | — |
| Wetlands | 0 | 8 | 10 | 6 | — |
Floodplains delta
No region carries this tag.
- Lets you build: 5 building levels: Open Field Pasturing (Husbandry), Enclosures (Husbandry), Breeding Farms (Husbandry), Great Droveways (Husbandry), Livestock Estates (Husbandry)
Hills
No region carries this tag.
- Lets you build: 5 building levels: Subterranean Aquaducts (Crops), Slope Pasturing (Husbandry), Highland Pasturing (Husbandry), Transhumance (Husbandry), Great Transhumance Roads (Husbandry)
- Blocks: 3 building levels: Irrigation Aqueducts (Crops), Irrigated Great Estates (Crops), Great Estates (Crops)
- Numeric effects where it is present: public order (law) -1 (Region Information Scroll); public order (law) +5 (Waystations and Garrisons); public order (law) +7 (Permanent Military Garrisons)
- Numeric effects it withholds (granted only where it is absent): public order (law) +4 (Waystations and Garrisons); public order (law) +6 (Permanent Military Garrisons)
Mountain valley
No region carries this tag.
- Lets you build: 5 building levels: Subterranean Aquaducts (Crops), Slope Pasturing (Husbandry), Highland Pasturing (Husbandry), Transhumance (Husbandry), Great Transhumance Roads (Husbandry)
- Blocks: 1 building level: Irrigated Great Estates (Crops)
- Numeric effects where it is present: public order (law) -1 (Region Information Scroll); public order (law) +5 (Waystations and Garrisons); public order (law) +7 (Permanent Military Garrisons)
- Numeric effects it withholds (granted only where it is absent): public order (law) +4 (Waystations and Garrisons); public order (law) +6 (Permanent Military Garrisons)
Mountains
No region carries this tag.
- Lets you build: 4 building levels: Slope Pasturing (Husbandry), Highland Pasturing (Husbandry), Transhumance (Husbandry), Great Transhumance Roads (Husbandry)
- Blocks: 9 building levels: Large Colony, Basin Irrigation (Crops), Canal Network (Crops), Irrigation Aqueducts (Crops), Irrigated Great Estates (Crops), Contour Furrows (Crops), Runoff Water Collection (Crops), Crop Rotation (Crops), Great Estates (Crops)
- Numeric effects where it is present: public order (law) -4 (Region Information Scroll); military construction time -20% (Region Information Scroll); religious construction time -20% (Region Information Scroll); defensive construction time -20% (Region Information Scroll); other construction time -20% (Region Information Scroll); public order (law) +5 (Waystations and Garrisons); public order (law) +7 (Permanent Military Garrisons)
- Numeric effects it withholds (granted only where it is absent): public order (law) +4 (Waystations and Garrisons); public order (law) +6 (Permanent Military Garrisons)
River valley
No region carries this tag.
- Lets you build: 5 building levels: Open Field Pasturing (Husbandry), Enclosures (Husbandry), Breeding Farms (Husbandry), Great Droveways (Husbandry), Livestock Estates (Husbandry)
Small islands and rocky coast
No region carries this tag.
- Lets you build: 5 building levels: Open Field Pasturing (Husbandry), Enclosures (Husbandry), Breeding Farms (Husbandry), Great Droveways (Husbandry), Livestock Estates (Husbandry)
- Blocks: 5 building levels: Canal Network (Crops), Irrigation Aqueducts (Crops), Irrigated Great Estates (Crops), Crop Rotation (Crops), Great Estates (Crops)
Steppe
No region carries this tag.
- Lets you build: 4 building levels: Subterranean Aquaducts (Crops), Nomad Communal Herding (Husbandry), Water Covenants (Husbandry), Breeding Stock Exchanges (Husbandry)
- Blocks: 6 building levels: Canal Network (Crops), Irrigation Aqueducts (Crops), Irrigated Great Estates (Crops), Runoff Water Collection (Crops), Crop Rotation (Crops), Great Estates (Crops)
- Numeric effects where it is present: public order (law) -2 (Region Information Scroll)
Desert
No region carries this tag.
- Lets you build: 4 building levels: Subterranean Aquaducts (Crops), Nomad Communal Herding (Husbandry), Water Covenants (Husbandry), Breeding Stock Exchanges (Husbandry)
- Blocks: 9 building levels: Large Colony, Canal Network (Crops), Irrigation Aqueducts (Crops), Irrigated Great Estates (Crops), Land Clearance (Crops), Contour Furrows (Crops), Runoff Water Collection (Crops), Crop Rotation (Crops), Great Estates (Crops)
- Numeric effects where it is present: public order (law) -4 (Region Information Scroll); military construction time -20% (Region Information Scroll); religious construction time -20% (Region Information Scroll); defensive construction time -20% (Region Information Scroll); other construction time -20% (Region Information Scroll)
Forest
No region carries this tag.
- Lets you build: 8 building levels: Slash and Burn (Crops), Assart Clearings (Crops), Rotational Grove Fields (Crops), Lowland Deforestation (Crops), Reclaimed Woodland Estates (Crops), Mast Pasturing (Adaptive husbandry), Forest Gardening (Adaptive husbandry), Managed Woodland Pastures (Adaptive husbandry)
- Blocks: 10 building levels: Irrigation Ditches (Crops), Basin Irrigation (Crops), Canal Network (Crops), Irrigation Aqueducts (Crops), Irrigated Great Estates (Crops), Land Clearance (Crops), Contour Furrows (Crops), Runoff Water Collection (Crops), Crop Rotation (Crops), Great Estates (Crops)
- Numeric effects where it is present: public order (law) -1 (Region Information Scroll)
Grassland
No region carries this tag.
Karst terrain
No region carries this tag.
- Lets you build: 4 building levels: Slope Pasturing (Husbandry), Highland Pasturing (Husbandry), Transhumance (Husbandry), Great Transhumance Roads (Husbandry)
- Blocks: 7 building levels: Basin Irrigation (Crops), Canal Network (Crops), Irrigation Aqueducts (Crops), Irrigated Great Estates (Crops), Runoff Water Collection (Crops), Crop Rotation (Crops), Great Estates (Crops)
- Numeric effects where it is present: public order (law) -1 (Region Information Scroll)
Plateau
No region carries this tag.
- Lets you build: 5 building levels: Subterranean Aquaducts (Crops), Slope Pasturing (Husbandry), Highland Pasturing (Husbandry), Transhumance (Husbandry), Great Transhumance Roads (Husbandry)
- Blocks: 1 building level: Irrigated Great Estates (Crops)
Wetlands
No region carries this tag.
- Lets you build: 8 building levels: Marsh Drainage Channels (Crops), Reclamation Embankments (Crops), Drainage Pumps (Crops), River Diversion Dyke (Crops), Reclaimed land Estates (Crops), Reedland Pasturing (Adaptive husbandry), Seasonal Pasture Rotation (Adaptive husbandry), Managed Wetland Pastures (Adaptive husbandry)
- Blocks: 10 building levels: Irrigation Ditches (Crops), Basin Irrigation (Crops), Canal Network (Crops), Irrigation Aqueducts (Crops), Irrigated Great Estates (Crops), Land Clearance (Crops), Contour Furrows (Crops), Runoff Water Collection (Crops), Crop Rotation (Crops), Great Estates (Crops)
- Numeric effects where it is present: population growth -2 (Region Information Scroll); public order (happiness) -2 (Region Information Scroll); military construction time -20% (Region Information Scroll); religious construction time -20% (Region Information Scroll); defensive construction time -20% (Region Information Scroll); other construction time -20% (Region Information Scroll)