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Civilization II · City Improvements

Sewer System

new in Civ II

Cities grow past size 12.

Sewer System (Civilization II improvement)
Source: Sid Meier's Civilization wiki (Fandom), CC BY-SA

Key details

Requires
Sanitation

Where it comes from

Unlocked by
Sanitation

About city improvements in Civilization II

City improvements are buildings constructed with production shields, each paying gold maintenance every turn. Most affect only their own city — which is why deciding what NOT to build everywhere is the real economic skill.

Strategy — Maintenance compounds: a Temple in every city is fine, a Colosseum in every city will bankrupt an early empire. Build to need, sell what you outgrow.

Related city improvements