Knights of Honor 2: Sovereign runs its economy in two layers that the interface never quite explains together. The province produces; the kingdom consumes. A province’s terrain and features decide which industries it can ever build. The building you place there decides which trade good the realm gains. The good itself, once produced anywhere in your lands, switches on a fixed bonus for the entire realm — and keeps it, as long as you keep producing or importing it. Spend building slots in the wrong order and you pay for goods you cannot use; spend them correctly and the provinces you already hold pay the wages of a mid-game army. If you also need the knight-role and warfare layer, the realm-management guide covers it.
What this covers: how province features, industry buildings and merchants turn into trade goods, and how those goods convert into armies in Knights of Honor 2: Sovereign. Why it matters: goods feed the kingdom advantages and the unit bonuses that decide mid-game battles — a province specialised on the wrong feature stalls the income curve behind your army. Who should care: rulers past their opening province, choosing a specialisation and deciding what to import.
Production is a switch, not a meter
The community wiki’s goods table is blunt about how this layer works: goods “are produced by buildings and upgrades and, regardless of which province they are produced in, are available throughout your entire kingdom”. A good is therefore not a local resource you ship around the map — it is a flag on your realm. Two consequences follow.
First, goods are inputs to construction. The same page states that “goods are required for buildings and upgrades”, and that if you stop producing a good a completed building needs, “they will stop providing bonuses until their requirements are met once again”. Cutting a supply chain does not just cost you the good; it suspends the buildings that depended on it.
Second, goods are set completion. The wiki lists eight kingdom advantages that each demand a set of goods, and notes that a bonus applies only while the whole set is available — “A kingdom either has a complete ‘set’ of resources for an advantage, or it does not.” That is the central economic decision in the mid-game: not “how much of this good do I have”, but “do I have one of each good this advantage wants”. A related nuance worth knowing: a handful of mostly merchant skills pay a governing bonus based on the number of goods produced in a province, so volume matters for those skills even though the kingdom effect itself is binary.
The chain starts at the province feature
You cannot build an industry anywhere you like. Province features gate the building, and the building gates the good. Special settlements and features are matched: a province with Iron ore gets a Mine and the Metalworking building; Marble deposit brings a Quarry and Stoneworking; Deep forests bring a Logging camp and Woodworking. Some features are geographically restricted or chained — the wiki notes that Gold ore, Silver ore and Lodestone deposits “can only appear in provinces with Iron ore”, that Limestone “can only appear in provinces with Marble deposits”, and that Amber deposits “can only appear in Coastal provinces”.
| Feature | Industry building | Goods it can produce |
|---|---|---|
| Iron ore | Metalworking | Iron (via Blast Furnaces) |
| Deep forests | Woodworking | Timber, Barrels, Furniture, Charcoal, Tar, Glass |
| Flax fields | Flax growing | Oils, Linen, Canvas, Ropes |
| Sheep / Cattle | Sheep and Cattle farming | Wool, Meat, Leather, Fine Cheese, Sausages, Draft Oxen, Parchment |
| Horses | Horse breeding | Trained Horses, War Horses |
| Vines | Viticulture | Raisins, Wine, Spirits |
| Herbs and spices | Herb gardening | Herbs, Spices, Wax, Candles, Dyes |
| Coastal | Sea shore district | Salted Fish, Sails, Maps, Cannons (with the right prerequisites) |
Buildings and upgrades are not the same thing, and the difference matters for planning. The wiki separates them: buildings “are part of a province… you have to construct them separately in each town”, while upgrades “are something your entire kingdom has and, once developed, they will appear in each town in which you have the building they correspond to. They cannot be taken by an enemy and you never lose them.” Upgrading a building is therefore a kingdom-wide decision, not a local one — which is why a single well-chosen province can flip several goods on for the whole realm.
Slot pressure is real. The wiki states that four building slots are available per town at the start, with another purchasable for 2,000 gold and “the cost increasing by 2,000 for each slot already unlocked”. Patch 1.5.0 later added a campaign setting that “allows players to place up to 18 buildings in a single province”, which raises the ceiling for tall play but does not remove the early-game scarcity. The Steam guide “Easy Build Order KoH2:S” advises exactly this sequencing pressure: build several Market Squares first and upgrade afterwards, because “it saves you some gold this way around”.
Where the gold actually comes from
Trade income obeys a published formula. In a December 2022 Steam thread, a developer posted it as:
profit = (base_trade * factors + profit_from_navigation_skill) * trade_level
with base_trade = 5 + merchant level + value based on relations + king's stars in economy + effects from goods WE produce, factors covering merchant skills, traditions, opinions and religion, and trade_level being “the level of your trade (small scale, large, imperial, etc.)”. The developer’s own framing is the useful part: “The size doesn’t matter directly, nor the goods THEY produce.” Trade income is built from your merchant, your goods, your relations and your trade tier — not from your partner’s province count.
That makes commerce the constraint rather than the goal. The wiki’s resource page describes commerce as “the trade potential of a kingdom”, not produced or spent but “allocated” to ongoing trade actions, and notes that “by far the most commerce is required for maintaining large scale trade (as well as trade expeditions and imports of goods)”. Unused commerce does nothing.
| Lever | What the source says | Practical reading |
|---|---|---|
| Trade tier | Higher tier = “the more the profit is scaled up”; large/exclusive/imperial trade costs the most commerce | Grow trade tier only when you can sustain the commerce upkeep |
| Goods you produce | “effects from goods WE produce” feed base trade | Goods are an income multiplier, not only a bonus switch |
| Merchant level | 1.6.0 “reduced merchant character level bonus to base trade from 1 to 0.5 per level” | Level still pays, but less than before the patch |
| Workers | 1.6.0 “increased gold produced by workers from 0.2 to 0.5” | Population is income; growth buildings pay directly |
| Vassal trade | 1.6.0 “decreased commerce upkeep by 50% when trading with a vassal” | Cheap commerce for kingdoms that hold vassals |
Imports fill the gaps in your good set. Steam forum answers describe the requirement plainly: you need a trade agreement, then a merchant, and a merchant can “import at most 3 Goods from a single trade partner”. The same thread adds that imports are lost “if the province where the goods are produced is acquired by another country” — so an import is not permanent. Two operational notes from the guides: goods you already produce are removed from the import list, and the Goods map view marks producing provinces in full green and producers-who-haven’t-built-yet in stripes.
Two more income rules close the loop. An ungoverned province is worth roughly a tenth of a governed one — PLITCH states that governing “increases the production rates there by a factor of 10”, and GameRant’s beginner guide repeats the same figure, so governors are the single largest income multiplier in the game. And the wiki warns that inflation rises the more gold you hold relative to your income, so stockpiling treasury is self-defeating.
Which goods fund a mid-game army
Mid-game armies stop being about raw squad counts and start being about the bonuses goods switch on. The wiki’s goods effects are kingdom-wide, which means one Iron province arms every heavy squad you own.
| Good | Produced by | Kingdom effect relevant to armies |
|---|---|---|
| Iron | Blast Furnace (Metalworking) | +20 heavy squads defense; +30% siegesiege. A timed, large-scale attack on a settlement — attackers try to destroy it, defenders try to hold it. equipment attack, health and siege damage |
| War Horses | Warhorse Breeds (Horse breeding) | +15% heavy cavalry attack; +20% heavy cavalry trample chance |
| Trained Horses | Horse Markets (Horse breeding) | +25% horse cavalry cost reduction; +10 resilience; +15% attack |
| Cannons | Artillery (Admiralty, Lord’s Castle) | +10 attack in sea battles; +20 fortifications attrition damage; +30% army’s base siege damage |
| Oils | Oil Presses (Flax growing) | +5% melee squads attack; +30% siege equipment attack and siege damage |
| Ropes | Ropewalks (Flax growing) | +15% ranged squad attack; +30% siege equipment attack and siege damage |
| Tar | Tar Pits (Woodworking) | +10% siege equipment attack; +20% health; +10% siege damage |
| Saltpeter | Saltpeter Trade | +20 food storage in all towns; +5% army’s base siege damage |
| Leather | Tanneries (Sheep or Cattle farming) | +10 squad defense |
| Lime | Lime Trade (Limestone) | +10 elite squad defense |
| Medicine | Apothecaries (Cathedral, Great Mosque, Temple) | +10% population growth; −20% cost for refilling squads |
| Gunpowder | Alchemist Labs (University, Madrasah) | +20% army’s base siege damage |
The siege cluster is the one to notice: Iron, Oils, Ropes and Tar each push siege equipment, and the wiki flags a hard religion limit on the rest — “Pagan kingdoms can’t naturally produce Gunpowder”, which Cannons require. A pagan kingdom can still own a province where the building exists (the wiki notes a conquered province with the right conditions will produce the resource), but it cannot build the chain itself.
Then there are the kingdom advantages, which are the closest thing the economy has to an army-wide upgrade. Age of War needs Cannons, Medicine, War Horses and Noblemen and grants “+20 Siege attack, +2 Army morale, +3000 Levies capacity in Kingdom” — a direct mid-game army bump. Age of Discovery (Cannons, Compasses, Maps, Ropes, Sails, Explorers) is the naval counterpart. Mercantilism (Barrels, Maps, Sails, Spices, Trained Horses, Traders) pays the bills instead: “Inflation is reduced by +25%” and “+20% Gold Merchant trade income”. Progress (Canvas, Ink, Iron, Oils, Parchment, Saltpeter, Sulfur, Tar) is the construction advantage at “+20% Lower upgrade costs” and “+25% Workers production”.
The second army bill is food and supply
Goods also pay for staying in the field. Patch 1.6.0 rewrote the army supply penalties: movement drops “by −30% when the army runs out of supplies”, out-of-supply armies take “a −75% penalty to archer salvos” and “a −50% penalty to cavalry attack”, and the morale penalty for out-of-supply armies in foreign lands rose “from −5 to −12”. The wiki’s food page explains the mechanism: each squad carries a food upkeep, so “the amount of available food restricts the army size of a kingdom”, and garrisons are supplied locally rather than from the national pool.
That makes the storage goods quietly military. Barrels give “+50 Food Storage in all Towns” and “+10% army resupply gold reduction”; Salt gives “+30 Food Storage”; Saltpeter gives “+20 Food Storage”; Sausages and Salted Fish add resupply-cost reductions. A kingdom that stacks siege goods but no storage finds its army stalled, not beaten.
Province choices that keep you solvent
The rules that follow from the sources are short, and they are the difference between a solvent realm and a bankrupt one.
- Match the province to its feature, then specialise. The guides agree: focus development where production conditions are strongest, and build barracks only in border provinces — an inland province does not need military infrastructure.
- One of each good before a second of any. Because advantage sets are binary, the first copy of a good that completes an advantage is worth far more than the fifth copy of a good whose effect you already own.
- Ungoverned provinces still produce goods. The wiki notes that producing goods “you do not need it governed”, which makes a remote, feature-rich province a cheap way to switch on a kingdom-wide effect when governor slots run short — even though its gold output will be a fraction of a governed province’s.
- Buy commerce, not gold. Trade tier and imports are the two commerce sinks; unused commerce has “no benefit”, so idle commerce is a planning error.
- Keep crown authority up and corruption down. Every guide’s money list agrees, and 1.6.0 tied vassal support to crown authority and opinions: refusing to help an attacked vassal now costs less authority than before, but it still costs.
The pattern underneath is straightforward. Province features are fixed at game start and cannot be gained or lost, so your map is a hand of goods you can produce and a list you must import. The mid-game army is not bought with gold; it is bought by holding one province of Iron, one of Horses, one source of Oils or Ropes or Tar, and enough food storage to keep the banners moving. Everything else is arithmetic.