Hong Kong

Strategy guide

+20% Production toward city projects covers the ones that decide games: spaceport launches, Carbon Recapture, theater festivals. In a science endgame, suzerainty of Hong Kong shaves real turns off every Mars and Exoplanet stage — often the difference in a close race.

Best civs & plans

A science-victory staple — grab it before your spaceport cities start launching. Also handy for culture civs spamming festival projects.

Envoy plan

The industrial envoy tiers make Hong Kong a good parking spot even before suzerainty: one envoy adds production toward buildings, districts and wonders in the capital and Workshop cities, and three envoys extend that to Factory cities. That means the envoys you spend here are never wasted on a bonus you will not use. The suzerain effect only matters once you run projects, so there is no rush in the ancient era; lock in three envoys around the time your first Campus research projects or Theater Square festivals appear. Contest it seriously from the industrial era onward, because AI civs in a science race will pile envoys into whichever industrial city-state they favor. The six-envoy tier adds production in Power Plant cities, which is a comfortable late reward for a heavy investment.

Value by era

For most of the game Hong Kong is a sleeper. District projects open as soon as their district is built, so a religious player running Holy Site Prayers for an early Great Prophet feels the speed-up first; otherwise few players run projects in the ancient and classical eras, and the envoy tiers carry the value. Theater festivals become common in the medieval and renaissance eras, which is where a culture civ starts to benefit. The peak is unmistakable: the Spaceport projects of the information era, where a fifth more production means the final launches finish turns earlier, plus Carbon Recapture for a diplomatic player racing climate points. Nothing about it fades; the late game is exactly where it belongs, and a suzerainty gained in the last fifty turns is still worth the envoys.

Pitfalls and how to protect it

A frequent mistake is overvaluing the bonus for districts and buildings; it applies strictly to projects, so a builder empire with no launches or festivals planned gets nothing beyond the envoy tiers. Skip it when Johannesburg or another industrial city-state offers raw production instead and you cannot hold both. Losing Hong Kong during the final Exoplanet stages is painful, so keep a Protectorate War available and a couple of units nearby from the modern era on. Levying its army is pointless; protect it through diplomacy and alliances. If an AI captures Hong Kong, liberating it restores the city-state and grants you immediate suzerainty, which can be faster than rebuilding a lost envoy lead.

Envoy bonuses

• 1 envoy+1 Production toward wonders, buildings and districts in your capital and in each city with a Workshop.
• 3 envoys+2 Production toward wonders, buildings and districts in each city with a Factory or a Consulate (+4 if the city has both).
• 6 envoys+3 Production toward wonders, buildings and districts in each city with a Power Plant or a Chancery (+6 if the city has both).

Envoy bonuses are shared by every city-state of the same type.

Other Industrial city-states

• Auckland
• Brussels
• Buenos Aires
• Cardiff
• Johannesburg
• Mexico City
• Singapore

Related guides

• City-States and Envoys: Where Your Influence Should GoWhere envoys come from, how to spend the first handful, which city-state types match each victory plan, how to win and keep suzerainty against the AI, and when conquering a city-state is the right call.Last reviewed: 2026-10-03
• Diplomatic Victory: Earning and Spending FavorA working plan for the Gathering Storm diplomatic victory: where Diplomatic Favor actually comes from, how World Congress sessions and votes turn into victory points, which emergencies, competitions and wonders matter, how to keep alliances alive, and when to spend favor versus hold it against a rival's lead.Last reviewed: 2026-10-03
• Early District Planning: The First 100 TurnsHow to read city sites for future adjacency, decide between settling for yields now or reserving tile clusters, and know when a planned layout should be abandoned.Last reviewed: 2026-10-03