Civ 6 Wonder Placement Guide

Etemenanki

Placement requirements

Must be built on: Marsh, Floodplains, Grassland Floodplains, Plains Floodplains

Unlock & cost

Technology: Writing
Production cost: 220

Wonders that compete for the same tiles

From the placement data: these wonders share a placement requirement with Etemenanki. A city meant to hold both needs a separate qualifying tile for each.

Great Bath — both allowed on Floodplains, Grassland Floodplains, Plains Floodplains
Mont St. Michel — both allowed on Marsh, Floodplains, Grassland Floodplains, Plains Floodplains
Petra — both allowed on Floodplains
Pyramids — both allowed on Floodplains

Is it worth building?

Science from marsh and floodplain tiles turns swampland into Campus country. On a wet start it is a sneaky-strong early science wonder; on dry land it does nothing — the map decides entirely.

Placement & timing tips

Count your marsh and floodplain tiles first, and don't drain what you plan to profit from. An early build in your wettest city — the science compounds longest that way.

When to build it — and when not to

Build it when: Build when the wet tiles sit in your capital and the science would arrive before your first Campus finishes — an ancient head start that stacks quietly with early scholarly pushes.
Skip it when: Skip when neighbors crowd your spawn — those ancient-era hammers are settlers and slingers you may not get to build later. A second wet city often beats the wonder outright.

Which city should build it

The wonder stands on marsh or floodplain and pays out on those same wet tiles, so the fit is the city with the most of them under its control, almost always the capital on a river with floodplain banks. Floodplains are where Dams and Industrial Zones will eventually want to go, so decide early which floodplain tiles stay as science-bearing farms and which become districts; the wonder tile itself should be a marsh or a floodplain the city will never need for anything else. Because the payout on floodplains is tied to the host city, a second wet city gains far less from it. Cities whose only wetlands are two or three scattered marshes are better served by draining them for a Campus.

Winning the race

Contest depends on the map more than on leaders. Writing is one of the first technologies anyone researches, so every rival can technically start it on turn twenty, but the AI only does so when its capital has wetlands, and river-heavy spawns are common. Expect a race whenever a neighbor's capital sits on a big floodplain; expect none on a hills-and-grassland map. The tools are the ancient-era ones: the wonder policy card, two or three woods chops even at their small early-game value, and a capital that skips its second warrior. The clear sign of a lost race is a rival capital that has already grown to four or five population with visible floodplain farms while yours is still building a slinger.

If you lose it: alternatives

Early science without the wonder means an early Campus, and the same wet capital usually has a river or mountain edge that gives one decent adjacency. A Library bought with the gold from an early trade route arrives about when the wonder would have finished. If the wetlands are extensive, Pingala with his research title in that city adds a comparable amount by the classical era. Redirect the ancient hammers into a settler and a builder; a second river city is the better long-term science investment, and the builder can farm the floodplains you were going to leave for the wonder. Marshes that no longer need preserving are worth draining.

Planning a district next to this wonder? Check its adjacency bonus →

Other wonders of the same era

Related guides

Last reviewed: 2026-10-03