Foundation: Organic City Layout & Supply Chain Guide
Zone planning for organic growth, complete supply chain reference, monument building workflow, and trade economy mastery for a thriving medieval city.

Foundation is a gridless, organic city-builder where villagers build their own paths and houses. Traditional grid-based planning does not work here. Instead, you paint zones, manage supply chains, and let the city grow organically. This guide covers zone planning, production chains, monument building, and the trade economy that turns a village into a thriving medieval city.
🗺️ Zone Planning: The Organic Approach
Residential Zones
Paint near workplaces. Villagers walk to work — if the walk exceeds 150m, they build a new house closer. Never paint residential zones in one giant block — scatter them in 3-4 clusters near different industries.
Industrial Zones
Place near resource nodes. Lumber camps near forests. Mines near stone/iron deposits. Wheat farms on flat, open land. Keep noisy industries (blacksmith, stonemason) 50m+ from residential — noise reduces desirability.
Market Zones
The center of your city. Place the Market building first, then paint a large market zone around it. Stall vendors set up automatically. Luxury stalls (jewelry, clothing) generate the most tax income. Every house must be within 100m of a market.
The Golden Rule of Foundation
📦 Complete Supply Chain Reference
| End Product | Input Chain | Required Buildings | Villager Tier |
|---|---|---|---|
| Bread | Wheat Farm → Windmill (Flour) → Bakery | 3 buildings | Serf |
| Beer | Wheat Farm → Brewery + Hop Farm → Brewery | 3 buildings | Commoner |
| Clothing | Sheep Farm (Wool) → Weaver (Cloth) → Tailor | 3 buildings | Commoner |
| Tools | Iron Mine → Smelter (Iron Bars) → Blacksmith | 3 buildings | Commoner |
| Jewelry | Gold Mine → Goldsmith + Gem Mine → Gem Cutter → Jeweler | 4 buildings | Citizen |
| Weapons | Iron Bars + Coal Mine (Charcoal) → Weaponsmith | 3 buildings | Citizen |
| Stained Glass | Sand Pit → Glassmaker + Quartz Mine → Glass Workshop | 3 buildings | Citizen |
Promotion Requirements
🏛️ Monument Building Guide
| Monument | Resources Required | Workers | Benefit |
|---|---|---|---|
| ⛪ Village Church | 100 Stone, 50 Planks | 8 builders | Faith need satisfied. Unlocks Monastery (tier 2). Prevents mass emigration during hardship events. |
| 🏰 Lord's Manor | 200 Stone, 100 Planks, 50 Iron Bars | 12 builders | Unlocks taxation. Generates 5 gold/month per citizen. Required for Citizen tier promotion. |
| ⛲ Grand Fountain | 150 Stone, 50 Marble | 10 builders | Massive desirability boost in 50m radius. Houses near fountains promote 40% faster. |
| 🏛️ Cathedral | 500 Stone, 200 Marble, 100 Stained Glass, 50 Gold | 20 builders | Endgame monument. Max faith. Attracts pilgrims (+20 population). Required for ultimate city achievement. |
Monument Construction Workflow
2. Set all resource depots to "Fill" priority for the monument materials.
3. Assign 2 dedicated builders and prevent them from doing other jobs.
4. Build in spring — winter slows construction by 40%.
A Cathedral takes ~45 in-game days with optimized logistics. Without planning: 90+ days.
📊 Trade Economy & Mastery
| Export Good | Buyer | Price | Strategy |
|---|---|---|---|
| Surplus Bread | Northburgh (city) | 8-12 Gold/unit | Best early-game export. Bread has a 3:1 wheat-to-bread ratio. 3 wheat farms feed 1 windmill + bakery + surplus for export. |
| Iron Tools | All trading partners | 18-25 Gold/unit | Best value-to-weight export. 1 iron ore → 1 tool. Tools stack to 10. One trading cart of tools = 250 gold. |
| Jewelry | Kallio (distant city) | 35-50 Gold/unit | Highest single-item value. But requires citizen-tier workers + 4-step chain. Build this industry last. |
| Stained Glass | Kallio, Monasteries | 40-55 Gold/unit | Best late-game export. Sand pit is unlimited resource. With 3 sand pits + 2 quartz mines = continuous production. |
Trade Mastery Perk System
FAQ
Why aren't my villagers building houses?+
Check three things: (1) Residential zone is painted — without it, no houses. (2) Zone is within 150m of workplaces. (3) Desirability is above 0. Add a well and decorate with trees (+2 desirability each).
How do I promote more villagers to Commoner?+
You need: (1) At least 2 food types in the market. (2) Clothing available in a market stall. (3) Church built and staffed. (4) Their house is within 100m of a market. Then click the house and press Promote.
Best monument to build first?+
Village Church. It unlocks faith needs and prevents the 'Mass Exodus' event. Second: Lord's Manor for taxation income. Third: Grand Fountain for the desirability boost that speeds all future promotions.