There are four major Catan expansions — Seafarers, Cities & Knights, Traders & Barbarians, and Explorers & Pirates — and they are not close in quality. Ranked from best to worst, our order is: 1. Seafarers, 2. Cities & Knights, 3. Traders & Barbarians, 4. Explorers & Pirates. Seafarers is the best first expansion for almost every group; Cities & Knights is the deepest and the favorite of veteran players; Traders & Barbarians is the best variety box; Explorers & Pirates is the most ambitious but also the fiddliest.
This ranking covers all four expansions that build on the base game, plus what to know about 5–6 player extensions and the standalone Catan games (Starfarers, Dawn of Humankind, New Energies) at the end. If you only buy one expansion this year, this guide will tell you which one.
TL;DR — the ranking:
- Seafarers — best first expansion. Ships, exploration, 9 scenarios, minimal new rules.
- Cities & Knights — deepest expansion. Commodities, knights, barbarian attacks. Best for experienced groups.
- Traders & Barbarians — best variety. Four modular variants plus campaigns. Great value, less cohesive.
- Explorers & Pirates — most ambitious, most divisive. Long setup, fiddly rules, scenarios vary in quality.
What’s in This Guide
- How we ranked them
- Quick comparison
- 1. Seafarers
- 2. Cities & Knights
- 3. Traders & Barbarians
- 4. Explorers & Pirates
- What about 5–6 player extensions?
- Standalone Catan games worth knowing
- Which Catan expansion should you buy first?
- Catan expansion FAQs
How We Ranked Them
Rankings are opinions, so here’s exactly what we scored on — no black box:
- Improvement per unit of complexity. How much better does the game get for each new rule you have to teach? Expansions that add a lot while staying teachable rank higher.
- Replayability. Scenarios, variants, and modularity that keep the box coming back to the table.
- Fit for a normal group. Most Catan tables are 3–4 casual-to-regular players, not tournament veterans. The best expansion should shine there.
- Table time honesty. An expansion that turns a 90-minute game into a 3-hour one pays a price in this ranking.
One note on bias: we value expansions that respect your evening. A brilliant-but-exhausting expansion loses to a great-and-playable one. If your group lives for heavy strategy, mentally bump Cities & Knights up a spot — we’ll say exactly when that applies.
Every Catan Expansion at a Glance
| Rank | Expansion | Released | Players | What it adds | Complexity |
|---|---|---|---|---|---|
| 1 | Seafarers | 1997 | 3–4 (5–6 w/ extension) | Ships, exploring new islands, gold fields, 9 scenarios | Low |
| 2 | Cities & Knights | 1998 | 3–4 (5–6 w/ extension) | Commodities, knights, barbarian attacks, city improvements | High |
| 3 | Traders & Barbarians | 2007 | 3–4 (5–6 w/ extension) | 4 modular variants + campaigns (fishermen, rivers, caravans) | Medium |
| 4 | Explorers & Pirates | 2013 | 3–4 (5–6 w/ extension) | 5 scenarios, missions, exploration, pirates, gold economy | High |
All four require the Catan base game. For the complete official product list beyond these four, Wikipedia’s list of Catan products is the most thorough reference we’ve found.
1. Seafarers — The Best Catan Expansion
If you buy one Catan expansion, buy Seafarers. It’s the oldest, the simplest, and still the best first step past the base game — and for most groups, it’s the only expansion they’ll ever need.
What it does is beautifully restrained: it adds ships (which work exactly like roads, but on water), a few new terrain types including gold fields, and — the real prize — nine scenarios that remix the map and the win conditions. One scenario has you racing to settle distant islands. Another turns the map into a fog-covered archipelago you explore as you play. The base rules barely change; the possibilities multiply.
That’s the whole argument for ranking it first. Seafarers makes Catan feel new again while adding maybe ten minutes of teaching. A group that knows the base game can be playing a Seafarers scenario twenty minutes after opening the box. No other expansion on this list can say that.
Buy Seafarers if: your group enjoys Catan but has started to feel the maps are samey; you want exploration without a rules lecture; you’re buying your first expansion.
Skip it if: your group finds base Catan too light and wants real strategic teeth — that’s what Cities & Knights is for.
2. Cities & Knights — The Deepest Catan Expansion
Cities & Knights is the expansion hardcore Catan players love most, and it’s not close. It replaces the development cards with three commodity tracks (coin, paper, cloth), adds knights you activate to defend the island, city improvements that unlock new abilities, and periodic barbarian attacks that punish whoever didn’t contribute enough defense. It turns Catan from a trading game with some tactics into a genuinely strategic one.
So why isn’t it number one? Two reasons: time and teaching. A Cities & Knights game runs two to three hours, and teaching it to new players takes a real commitment — the first game with this expansion will feel like learning a new game, because in many ways it is. For a group of experienced players who want Catan at its most demanding, it’s the best box on this list. For a mixed or casual group, it’s a night-ender, not a night-maker.
The barbarian mechanic deserves special mention: it’s the rare catch-up system that feels thematic rather than punitive. When the barbarians land, the weakest contributor loses a city — which means everyone has a reason to care about defense, and the table politics around it are delicious.
Buy Cities & Knights if: your group plays Catan regularly and wants more depth; everyone already knows the base game cold; you enjoy 2–3 hour strategy sessions.
Skip it if: you play with casual players or kids; your game nights run under two hours (see our guide on how to host a game night for keeping evenings on schedule).
3. Traders & Barbarians — The Variety Box
Traders & Barbarians is the hardest expansion to summarize, because it’s really four small expansions in one box: fishermen of Catan, the rivers of Catan, the caravans, and a barbarian-attack variant — plus campaign scenarios that chain them together. It also includes official 2-player variant rules, which no other expansion on this list offers.
As pure value, it’s excellent: you get more distinct ways to play than any other box here. The fishermen variant (catch fish, trade them for useful bonuses) is a genuinely lovely addition that slots into the base game with almost no friction. The caravans add a nice spatial puzzle to the map.
But “four small expansions” is also the weakness. Nothing in Traders & Barbarians transforms the game the way Seafarers’ exploration or Cities & Knights’ commodities do — it broadens Catan without deepening it. It feels like a collection of good ideas rather than one great one. That’s why it sits at number three: the box you’ll reach for when you want something different, not the box that redefines the game.
Buy Traders & Barbarians if: you want maximum variety per dollar; you sometimes play Catan with two players; you like modular variants you can mix and match.
Skip it if: you want one big new idea rather than several small ones — Seafarers or Cities & Knights will satisfy you more.
4. Explorers & Pirates — The Ambitious One
Explorers & Pirates is the most ambitious Catan expansion and the hardest to recommend. It throws out much of what you know: instead of one island, there are three (two hidden at the start); instead of cities, you build port settlements; instead of just building, you run missions — explore, found harbor settlements, deliver spices, hunt pirate lairs. Unexplored hexes are revealed as you sail to them, and if a dice roll gives you nothing, you get gold as compensation.
When it works, it’s a genuine adventure — the exploration is exciting in a way base Catan never is. But “when it works” is doing heavy lifting. Setup is long, the rules overhead is the highest on this list, scenarios vary noticeably in quality, and a full game can sprawl. It’s also the expansion most likely to leave a new player behind: there’s simply more to track.
None of that makes it bad. It makes it specific: Explorers & Pirates is for the group that’s played Catan to death, owns the other expansions, and wants the formula broken open. For everyone else, it’s the last box to buy, not the first.
Buy Explorers & Pirates if: your group has exhausted the other expansions; you want exploration and missions over classic Catan strategy; long, epic sessions are the point.
Skip it if: this is your first or second expansion — start with Seafarers.
What About 5–6 Player Extensions?
Every expansion on this list (and the base game) has a 5–6 player extension — extra pieces that let two more people join. They’re worth it under one condition: you regularly play with five or six.
The honest caveat: Catan with six players is a different, slower game. Downtime between your turns grows, and the extensions add a special build phase so players aren’t completely idle. If your group is usually four and occasionally six, you’re better off splitting into two games or picking something built for crowds — our game night guide has picks by group size. If six is your normal table, the extensions are close to essential.
Standalone Catan Games Worth Knowing
Not everything with “Catan” on the box needs the base game. Three standalones are worth knowing about:
- Catan: Starfarers — the space reimplementation (second edition 2019). Same DNA, but you’re exploring a galaxy instead of an island. 3–4 players, around two hours. The most “different game” feeling of the three.
- Catan: Dawn of Humankind (2022) — a modern reimplementation of the old Settlers of the Stone Age. Stone-age setting, migration mechanics, plays 3–4.
- Catan: New Energies (2024) — Catan reimagined in the modern era around energy: invest in renewables or cheap fossil fuels and deal with the environmental fallout. 3–4 players, about 90 minutes. The most topical of the three.
These don’t slot into the ranking above because they’re separate purchases, not expansions — but if someone in your group is Catan-curious and doesn’t own the base game, a standalone is a cleaner entry point than base-plus-expansion. You can browse the full official lineup at catan.com.
Which Catan Expansion Should You Buy First?
The short decision tree:
- Most groups → Seafarers. It’s the best first expansion ever made for this game, and it’s not close.
- Experienced group that wants depth → Cities & Knights. The strategist’s expansion. Just budget the evening for it.
- Want variety and 2-player rules → Traders & Barbarians. The sampler box.
- Played everything and want a shake-up → Explorers & Pirates. Ambitious, fiddly, and fun in the right hands.
And one piece of advice that applies to all four: don’t buy two at once. Play each expansion three or four times before adding the next — Catan expansions can be combined, but every combination adds teaching time, and the fastest way to ruin a good expansion is to stack it with another one before your group has absorbed the first.
Catan Expansion FAQs
Do I need the base Catan game to play the expansions?
Yes — Seafarers, Cities & Knights, Traders & Barbarians, and Explorers & Pirates all require the base game. The standalone titles (Starfarers, Dawn of Humankind, New Energies) do not.
Can you combine Catan expansions?
Yes, the expansions are designed to be combinable — Seafarers plus Cities & Knights is the classic combo. But each combination adds rules and playtime, so learn one expansion properly before stacking another.
Which Catan expansion is best for 2 players?
None of the four main expansions is ideal at two players — Catan is a 3–4 player game at heart. Traders & Barbarians includes official 2-player variant rules, making it the best of the bunch for duels. For a dedicated 2-player Catan experience, look at Rivals for Catan (the card game) instead — and our best two-player board games roundup has more options.
Which Catan expansion is the hardest?
Cities & Knights and Explorers & Pirates are the most complex, in different ways: Cities & Knights adds strategic depth (commodities, knights, city improvements), while Explorers & Pirates adds rules overhead (missions, exploration, three islands). Seafarers is the easiest to learn.
How long does a Catan expansion game take?
Seafarers and Traders & Barbarians add roughly 30 minutes to the base game’s 60–90 minutes. Cities & Knights typically runs 2–3 hours. Explorers & Pirates is the longest, often 2+ hours with setup.
What’s the newest Catan expansion?
Among the four major expansions, Explorers & Pirates (2013) is the most recent. The newest Catan releases are standalone games: Dawn of Humankind (2022) and New Energies (2024).
The Short Version
Seafarers first, Cities & Knights when your group is ready for depth, Traders & Barbarians for variety, Explorers & Pirates when you’ve played everything else. That’s the ranking, and we’d defend it at any game table.
Bringing Catan to the table this weekend? Our how to host a game night guide covers the planning, timeline, and food — and the board game night checklist handles the setup details.
