Cartographer's Almanac

Pillar guide

Catan Expansions: The Complete 2026 Buying Guide

Every official Catan expansion ranked and explained. Honest tradeoffs, head-to-head comparisons, and the right pick for different group profiles.

TL;DR

Buy Cities & Knights first if your group plays Catan often. Buy Seafarers first for variety and casual play. Buy Traders & Barbarians for groups with mixed taste — five scenarios in one box. Add the matching 5–6 player extension if you regularly play with 5+ people. Skip Explorers & Pirates until you've worn out the others.

The full ranking

Every official expansion in the 2026 catalogue, ranked by replay value, depth added, and table presence:

  1. Cities & Knights — deepest, most replayable, the tournament-grade pick.
  2. Seafarers — eight pre-built scenarios, gold hexes, ships.
  3. Traders & Barbarians — five scenarios + Catan for Two in one box.
  4. 5–6 player extensions — capacity bumps for groups of 5+.
  5. Explorers & Pirates — exploration-focused, slower-paced.
  6. Crop Trust scenario — charity tie-in, free-ish, surprisingly interesting.
  7. Oil Springs scenario — tragedy-of-the-commons, brilliant design.
  8. Catan: Starfarers — Catan in space, standalone, divisive.
  9. Helpers of Catan — character-card mini-expansion.
  10. Rivals for Catan — the dedicated 2-player game.

Full ranking with details: top 10 best Catan expansions ranked.

Cities & Knights: the depth expansion

Three new commodities (paper, coin, cloth), a city-improvements track, an evolving knight economy, and a recurring Barbarian Ship that punishes turtling. Game length: 90–120 minutes. Win condition: 13 VPs. The strategic surface roughly doubles vs base Catan.

Strategy guide: Cities & Knights strategy. Generator: balanced C&K boards.

Seafarers: the variety expansion

Ships, gold hexes, eight pre-built scenarios with named maps. Game length: 60–80 minutes. The breadth — eight different scenario layouts — is the selling point.

Generator: balanced Seafarers boards. Map generator guide: Catan Seafarers map generator.

Traders & Barbarians: five scenarios in one box

The Fishermen of Catan, The Rivers of Catan, The Caravans, Barbarian Attack, and the title scenario. Plus Catan for Two — the only official 2-player Catan variant that plays well.

Map generator guide: Catan T&B map generator. 2P play: Catan for 2 players.

The 5–6 player extensions

Stretched 30-hex map, additional pieces for two more colours, and the build phase that lets every player build between turns. Available for base Catan, Seafarers, Cities & Knights, and Traders & Barbarians as separate purchases.

Strategy: 5–6 player strategy. Generator guide: 5–6 player map generator.

Head-to-head comparisons

Underrated scenarios you should try

Most groups play the title scenarios and never explore further. Beyond the headline content, the Catan catalogue hides 30+ official scenarios — Crop Trust, Oil Springs, Cloth for Catan, Through the Desert, The Pirate Islands, The Fog Island.

Full list: 10 underrated Catan scenarios.

If you've exhausted the official content

For veteran groups: 8 Catan variants for veteran groups covers Robber Wars, Drought, Diplomacy Catan, and others. Or graduate to 12 board games like Catan.

Accessories worth buying

Beyond the expansions themselves, a few accessories genuinely improve play (organisers, frame boards, 3D-printed tiles). Most are aesthetic noise.

Honest list: Catan accessories worth buying. DIY: 3D-printed Catan boards.

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The full library

Every article in the buying-guide and generator-guide clusters: