Civ 6 Wonder Placement Guide

Colossus

Required neighbors are shown on the map — the remaining tiles can be anything.

Placement requirements

  • Must be built on a Coast tile (not a lake)
  • Must be built on water adjacent to land
  • Must be adjacent to: Harbor

Unlock & cost

  • Technology: Shipbuilding
  • Production cost: 400

Wonders that compete for the same tiles

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

Is it worth building?

A free trade route and trader plus gold — an early economic tempo play for coastal empires. The route pays for the wonder over time; naval civs like England and Phoenicia want it most.

Placement & timing tips

Coast next to a Harbor — a natural fit in your first good port city. Its window is early; if you reach medieval without starting it, invest elsewhere.

When to build it — and when not to

Build it when
Build when an early Harbor city is already running and you want gold tempo without pausing expansion — the free trader means the route starts paying while your other cities keep making settlers.
Skip it when
Skip when your coastline is an afterthought — an inland empire gets more from a Commercial Hub and a bought trader. If you take only one early naval wonder, the Great Lighthouse serves fighting navies better.

Which city should build it

A coast tile that touches both land and a Harbor, and not on a lake, which usually means the tile between the Harbor and the shoreline of your first port city. Because the Harbor wants City Center adjacency and the Colossus wants Harbor adjacency, the three end up in a tight line along the coast; leave that tile free of fishing boats, because a sea resource under the wonder is lost. The city itself should be the one that will also receive the Lighthouse and Shipyard, since the free trade route works best out of a city that can keep sending routes. A capital on the coast is the classic choice, but a second city founded on a good bay works if the capital is inland.

Winning the race

Fiercely contested on any map with coastline. Shipbuilding is an early, cheap technology that maritime AI leaders such as Victoria, Dido and Harald pick up early, and the wonder is cheap enough that a capital can finish it in a dozen turns. The Harbor prerequisite is the gatekeeper, and an AI that settled inland cannot compete, so the number of coastal neighbors tells you how hard the race is. Secure it by building the Harbor right after your second settler, slotting the ancient wonder card, and chopping coastal woods into it. If you reach Shipbuilding and a neighbor already has a Harbor with a Lighthouse, they are ahead; check the tracker before spending a single turn.

If you lose it: alternatives

The free trader is the part with a price tag, and it is a small one: a Commercial Hub or a Market bought with gold produces the same route capacity a few turns later. Gold from the wonder is matched by a Lighthouse working sea tiles plus one international route. Do not chase it again once the medieval era arrives; the Great Lighthouse serves naval empires better and is usually less crowded. Spend the freed production on a Galley pair and a third settler, since an early coastal expansion adds Harbor cities that each bring their own route slot. On maps where every neighbor is a sailor, simply stop competing for naval wonders and settle the interior they are ignoring.

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

Other wonders of the same era

Related guides

Last reviewed: 2026-10-03