Research · Economy

Harbour Works

Deep water, dressed stone and a crane on every quay — raises gather yield.

Entity ID: harbour_works
Branch: Economy
Stat buffed: gather_yield — Gather yield
Bonus per level: +1.2%
Maximum level: 6
Bonus at maximum level: +7.2%
Power per level: 95
Power at maximum level: 570
Base study time: 52 seconds
Study time at maximum level: 12m 20s
Prerequisites: Foraging Craft at level 5, Deep Mining at level 5

Cost, time and bonus at every level

Harbour Works runs to level 6, adding +1.2% to gather_yield and 95 power each time. Studying it out costs the four soft resources — the same amount of each — and takes 12m 20s for the final level alone. Gems are only ever the optional instant finish; the study itself is bought with what your fields already make.

Harbour Works: what each level costs and what it grants.
Level	Total gather yield	Power	Study time	Each resource	Gems to finish instantly
1	+1.2%	95	3m 19s	12,000	4
2	+2.4%	190	4m 19s	15,600	5
3	+3.6%	285	5m 37s	20,280	6
4	+4.8%	380	7m 18s	26,364	8
5	+6%	475	9m 29s	34,273	10
6	+7.2%	570	12m 20s	44,555	13

Taken from nothing to level 6 that is 42m 23s of raw study and 153,072 of each of food, wood, stone and iron — 612,288 resources in total.

Where it sits in the tree

Harbour Works belongs to the Economy branch — the production, construction and gathering line — everything that fills the stores. It stays locked until Foraging Craft reaches level 5 and Deep Mining reaches level 5. Nothing further in the tree depends on it, so it is a leaf: worth taking for its own bonus, never as a stepping stone.

The road here: Agriculture to level 5 → Woodcraft to level 5 → Wainwrights to level 5 → Foraging Craft to level 5 → Harbour Works. That is 4 studies standing between a fresh Academy and this one.

What Harbour Works costs before its own first level: the prerequisite chain, at the levels it demands.
Prerequisite	Level required	Each resource	Study time
Agriculture	5	108,517	1h 9m
Woodcraft	5	108,517	14m 27s
Wainwrights	5	108,517	17m 20s
Foraging Craft	5	108,517	17m 20s
Total before you may begin	—	434,068	1h 58m

Guide: Research & the Academy · Research Priorities. Studied at the Maester's Academy. Index: all 81 studies · the whole database.

Rest of the Economy branch: Agriculture · Logistics · Irrigation · Crop Rotation · Granaries · Millwork · Quarrying · Smelting · Deep Mining · Woodcraft · Animal Husbandry · Wainwrights · Foraging Craft · Masonry · Carpentry · Stonecutting · Trade Roads · Marketry · Granary Networks · Great Works

Every figure above is generated from the shipped game code — the same constants and formulas the running game uses — and regenerated whenever the balance changes. Nothing on this page is hand-typed.

Harbour Works

Cost, time and bonus at every level

Where it sits in the tree

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