Unofficial fan reference · game data patch 9.0.4 (Oct 15, 2026)

How to make money as Grand Cathay

Grand Cathay's fastest-paying building in Total War: Warhammer III is the Gold Smelter (Gold Mining, level 3): 2,000 gold for +600 gold a turn, its cost back in 3.3 turns once built. The most gold from one building slot is the Gold Smelter at +600 a turn (3,500 gold to build the chain that far, back in 5.8 turns). 57 Grand Cathay building levels make flat income, patch 9.0.4.

Fastest payback

Turns of income to earn the building's cost back (each chain's fastest level).

  1. 1Gold SmelterGold Mining 3 · 2,000 gold → +600 a turn · Region with the resource3.3turns
  2. 2Wares MarketIndustry (Yang) 1 · 500 gold → +150 a turn · Any settlement3.3turns
  3. 3Spice MarketIndustry (Yin) 1 · 500 gold → +125 a turn · Any settlement4turns
  4. 4Animal StoreTusks 1 · 500 gold → +100 a turn · Region with the resource5turns
  5. 5Brine Mining PansSaltmaking 1 · 500 gold → +100 a turn · Region with the resource5turns
  6. 6Cinnabar Mining PitDye Production 1 · 500 gold → +100 a turn · Region with the resource5turns

Most gold per building slot

Income of each chain's top level; the line shows that level's own cost.

  1. 1Gold SmelterGold Mining 3 · 2,000 gold → +600 a turn · Region with the resource+600a turn
  2. 2Sea PortPort 3 · 6,000 gold → +500 a turn · Port settlement+500a turn
  3. 3Trade ExchangeIndustry (Yang) 3 · 1,500 gold → +325 a turn · Any settlement+325a turn
  4. 4Goods EmporiumIndustry (Yin) 3 · 1,500 gold → +250 a turn · Any settlement+250a turn
  5. 5Alchemy WorkshopMedicine Production 3 · 2,000 gold → +200 a turn · Region with the resource+200a turn
  6. 6Cattle RanchPastures 3 · 2,000 gold → +200 a turn · Region with the resource+200a turn
COMPUTEDIncome = the level's flat gold per turn (the game's “Income generated” effects on the building itself, table building_effects_junction) minus its upkeep (building_levels.upkeep_cost). Payback = cost (create_cost) ÷ income. Upgrade payback = the level's cost ÷ the income it adds over the level below. “Gold back by turn” = build turns (create_time) + payback, counted from the order. Chain total = every level's cost up to this one, and its payback = that total ÷ income. Patch 9.0.4.
ASSUMPTIONS
  • Base values: technologies, lord skills, commandments, campaign difficulty and faction effects that change income or building costs are not counted.
  • Percentage boosts (“+4% income from all buildings in the province”, “+20% (local region)”) are not in the payback: they depend on the buildings they boost. They are listed below with the income those buildings need to make.
  • Conditional income (“When Control is 75 or more”, “When enemy Lord is present”…) is not counted; listed below in the game's words.
  • Resource buildings need a region with that resource; ports need a port settlement. A slot can hold one building, so late in a campaign gold per slot matters more than payback.

Every Grand Cathay building that makes gold (57)

#
1Wares MarketIndustry (Yang)150011503.30—4.30Any settlement
2Gold MineGold Mining21,00033003.3056.30Region with the resource
3Gold SmelterGold Mining32,00046003.306.707.30Region with the resource
4Spice MarketIndustry (Yin)150011254—5Any settlement
5Trade ExchangeIndustry (Yang)31,50033254.60127.60Any settlement
6Merchant CaravansIndustry (Yang)21,00022005207Any settlement
7Exotic Animal TamerExotic Animals150011005—6Region with the resource
8Cinnabar Mining PitDye Production150011005—6Region with the resource
9Hunting CampWild Game150011005—6Region with the resource
10Gem MineshaftGem Mining150021005—7Region with the resource
11Gold Mining PitGold Mining150021005—7Region with the resource
12Iron Mining PitIron Mining150021005—7Region with the resource
13Animal StoreTusks150011005—6Region with the resource
14SawyerMarble Quarry150011005—6Region with the resource
15Herb Gatherer's CampMedicine Production150011005—6Region with the resource
16Obsidian QuarryObsidian Quarry150011005—6Region with the resource
17Grazing PasturesPastures150011005—6Region with the resource
18Clay PitPottery Production150011005—6Region with the resource
19Brine Mining PansSaltmaking150011005—6Region with the resource
20Spice MarketSpice Trading150011005—6Region with the resource
21OrchardsOrchards150011005—6Region with the resource
22Woodman's HutWoodlands150011005—6Region with the resource
23Gem FactorsIndustry (Yin)21,00021755.70207.70Any settlement
24Goods EmporiumIndustry (Yin)31,50032506209Any settlement
25Exotic Animal PenExotic Animals21,00021506.70208.70Region with the resource
26Cinnabar MineDye Production21,00021506.70208.70Region with the resource
27Hunting LodgeWild Game21,00021506.70208.70Region with the resource
28Gem MineGem Mining21,00031506.70209.70Region with the resource
29Iron MinesIron Mining21,00031506.70209.70Region with the resource
30Tusk MarketTusks21,00021506.70208.70Region with the resource
31Marble QuarryMarble Quarry21,00021506.70208.70Region with the resource
32Exotic HothouseMedicine Production21,00021506.70208.70Region with the resource
33Obsidian Trinket MakerObsidian Quarry21,00021506.70208.70Region with the resource
34Livestock PensPastures21,00021506.70208.70Region with the resource
35Pottery MakerPottery Production21,00021506.70208.70Region with the resource
36Brine Mining BasinSaltmaking21,00021506.70208.70Region with the resource
37Spice Trading PostSpice Trading21,00021506.70208.70Region with the resource
38VineyardOrchards21,00021506.70208.70Region with the resource
39Timber MillWoodlands21,00021506.70208.70Region with the resource
40River PortPort23,0004300101514Port settlement
41Exotic Animal MarketExotic Animals32,0003200104013Region with the resource
42DyemakerDye Production32,0003200104013Region with the resource
43TanneryWild Game32,0003200104013Region with the resource
44Gemcutter's WorkshopGem Mining32,0004200104014Region with the resource
45Iron SmelterIron Mining32,0004200104014Region with the resource
46Tusk CompoundTusks32,0003200104013Region with the resource
47Stone Mason's WorkshopMarble Quarry32,0003200104013Region with the resource
48Alchemy WorkshopMedicine Production32,0003200104013Region with the resource
49Obsidian Amulet CarverObsidian Quarry32,0003200104013Region with the resource
50Cattle RanchPastures32,0003200104013Region with the resource
51KilnsPottery Production32,0003200104013Region with the resource
52SaltworksSaltmaking32,0003200104013Region with the resource
53Eastern BazaarSpice Trading32,0003200104013Region with the resource
54VintnerOrchards32,0003200104013Region with the resource
55LumberyardWoodlands32,0003200104013Region with the resource
56Sea PortPort36,0006500123018Port settlement
57DockPort11,500210015—17Port settlement

Main building levels

Settlement upgrades make gold too, but they also cost growth (population surplus) and open building slots, so payback alone undersells them. Province capitals and minor settlements are separate chains.

#
1Bastion GatehouseBastion11,000—100—
2HamletProvince Capital11,000—150—
3HamletMinor Settlement11,000—150—
4Bastion TowerBastion22,000115040
5VillageProvince Capital22,000120040
6VillageMinor Settlement22,000120040
7Bastion CitadelBastion34,000220080
8TownProvince Capital34,000225080
9TownMinor Settlement34,000225080
10Bastion StrongholdBastion48,0004250160
11CityProvince Capital48,000435080
12Bastion FortressBastion516,0005300320
13Province CapitalProvince Capital516,0005500106.70

Percentage income boosts

These add a share to other buildings' income: the province's, every region's you own, or the local region's (the region the building stands in). One pays back in 10 turns when the buildings it boosts make cost ÷ (10 × share) gold a turn — the last column.

#
1Gold SmelterGold Mining2,00010%——2,000
2Tea ParlourCivic (Yin)5002%——2,500
3Contemplation GardensCivic (Yin)1,0004%——2,500
4Administration CentreCivic (Yin)1,5006%——2,500

Every level's full effects: Grand Cathay buildings.