Rules Catan

Longest Road Rules in Catan: When Does It Switch?

The complete guide to Longest Road — how to earn it, lose it, and the edge cases that cause arguments.

The Longest Road card is worth 2 victory points and causes more arguments than any other rule in Catan. When does it switch? Can settlements break a road? What happens in a tie?

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Quick Answer

You need at least 5 consecutive road segments to claim Longest Road. If someone builds a longer continuous road, they take it. If yours gets broken by an opponent's settlement, recalculate.

The Basic Rules

Minimum 5 segments

You need at least 5 consecutive road pieces to claim the Longest Road card.

Must be continuous

The road must be an unbroken chain. Branches count — you use the longest single path through your road network.

Your settlements don't break it

Your own settlements and cities along the road do NOT break your chain — the road continues through them.

When Does Longest Road Switch?

Scenario 1: Someone Builds a Longer Road

If another player builds a continuous road that's longer than yours, they immediately take the Longest Road card. They must exceed your length — tying is not enough.

Scenario 2: Your Road Gets Broken

An opponent builds a settlement at an intersection along your road, breaking your chain. Recalculate the longest continuous segment of your remaining road. If it's no longer the longest, the card moves — or goes back to the supply if no one has 5+.

Scenario 3: Tie After a Break

If your road gets broken and the remaining segment ties with another player who already had a long road, nobody gets the card. It returns to the supply until someone has a clear longest road of 5+.

Edge Cases That Cause Arguments

"Can an opponent's settlement break my road?"

Yes. If another player builds a settlement at an intersection along your road, it splits your road into two separate chains.

"Does a loop/circle count?"

Yes, loops are valid road segments. Count the longest path through the loop (don't double-count any segment).

"Do ships count in Seafarers?"

Yes. Ships and roads both count as segments for Longest Road (called "Longest Trade Route" in Seafarers).