Catan expansions: which one to start with and in what order

Saturday afternoon in Albox. On the dining table, the Catan board has been set up for three games in a row: the hex tiles no longer get mixed up, someone has taken the Longest Road twice, and someone else finished one settlement short of ten points. You tidy up, and then comes the sentence we hear at the counter almost every week: "This is addictive, so what do we buy next so it doesn't run short?".

That is exactly what this article answers. Catan (Klaus Teuber's classic, now 30 years old and published in Spain by Devir) has several large expansions and one player extension. They are not all for the same moment or the same group, and buying them in the wrong order is the quickest way to end up with a box that never leaves the cupboard.

I'll explain it the way I explain it to anyone who walks into the shop on Avenida 28 de Febrero: no marketing, just the judgement of someone who has sold them for years and seen which ones go home happy and which ones bounce back. At the end there is a comparison table and a set of frequently asked questions so you can decide in two minutes.

First of all, no exceptions: you need the base game

Before talking about order there is one rule that admits no argument: no Catan expansion is a standalone game. Every single one needs the Catan base game to work. The expansions add boards, tiles and new rules, but they are built on the resources, dice and cards in the original box.

If someone has been given "Seafarers" or "Cities & Knights" thinking it was the whole game, bad news: without the base box there is no game. And good news: the base game is exactly the right place to start. It is a well-rounded game on its own. For 3 or 4 players, games of between 60 and 90 minutes, from age 10, with that mechanic of collecting lumber, brick, wool, grain and ore, trading as in a souk and racing to 10 victory points. Some people play for years with just the base game and miss nothing.

The expansions come in when the group starts asking for three specific things: more map, more depth or more variety. Depending on which of the three you are after, the order changes. That is where getting it right matters.

The recommended order (and why this one and not another)

If I had to sum up in one list the guide to Catan expansions that I give at the counter, it would be this:

1. Base game. Non-negotiable: it is the foundation for everything else.
2. Seafarers. The first expansion. The one that complicates the rules least and "widens the world" most.
3. Traders & Barbarians. An alternative, or the next step, if you want variety, standalone scenarios and a 2-player mode.
4. Cities & Knights. The big leap in depth, the "definitive" expansion once you have mastered the base game.
5. Explorers & Pirates. For those who already have almost everything and want more sea, missions and exploration.

The logic is simple: each layer you add increases playing time and brings new rules. It pays to climb the complexity ladder gradually, not to binge all at once. Let's go box by box.

Seafarers: the way in

If you ask me which Catan expansion to start with, my answer is almost always Seafarers. The reason is that it barely touches the rules you already know: it adds sea hexes, ships, islands and a collection of new scenarios. Rather than reinventing Catan, it opens it up to the water. You still build, trade and compete for the 10 points, but now there are sea routes to lay, islands to settle and maps that change the game completely.

It is the perfect transition because the group does not have to learn a whole system from scratch. In one afternoon you are already sailing. One example of what changes: in the base game, a corner of the board surrounded by sea is a dead end; in Seafarers, that same corner is a chance to sail to an untouched island and be the first to plant a flag there. That is why, in the eternal debate of Catan Seafarers or Cities & Knights as a first purchase, Seafarers wins for most groups: it gives you a huge amount of new play with a minimal learning curve.

Traders & Barbarians: variety and the 2-player mode

Something is worth clarifying here, because it confuses a lot of people: Traders & Barbarians is not a "single-system" expansion but a collection of standalone scenarios and mini-modules. Caravans, the Rivers of Catan, the arrival of the barbarians... you can play each module on its own or combine them. It is the ideal option if your group gets tired of always playing the same map and wants surprises without committing to memorising a whole rulebook.

The practical advantage of separate modules is that you set the dose yourself: one week you add only the Rivers of Catan, another you try the caravan, and if a module does not convince you, you simply never get it out again. There is no "all or nothing".

And it brings a much sought-after extra: it includes rules for 2 players. If the question on your mind is "can you play Catan with two?", this is the official answer. The base game is designed for 3 to 4, but with these modules you have a designed way to enjoy it as a couple, not a home-made workaround. For couples who play a lot during the week, this is often an even better first purchase than Seafarers.

Cities & Knights: the definitive expansion

It is, without question, the most acclaimed by the community. Cities & Knights is what regular players aspire to once they know the base game by heart. It adds knights who defend the island, barbarian attacks that force you to cooperate (or to let the careless neighbour fall), metropolises and progress in three areas (science, trade and politics) through decks of progress cards.

All of that has a cost: it raises the complexity considerably and noticeably lengthens the game. It is not the expansion for introducing Catan to someone who has never played; it is the expansion for the group that already enjoys the base game, understands the resource economy well and wants more strategic decisions per turn. The underlying change is that it stops being a race to accumulate points and becomes a management game: if you neglect defence, the barbarians punish everyone and whoever contributed least loses a city. If that sounds like your group, this is straight away the best Catan expansion you can buy. Just make sure you come to it with the base game well worn in.

Explorers & Pirates: for those who already have everything

The most recent of the big ones. Explorers & Pirates focuses on maritime exploration: ships that discover hidden tiles, pirates and missions to complete. The uncertainty of not knowing what is on the other side of the map until you get there gives it a sense of adventure the others lack. It is great fun, but I put it at the end of the ladder because it makes sense once you have squeezed the earlier ones dry and want to keep stretching the Catan sea with fresh mechanics.

Your first expansion, depending on your group

The ideal order changes depending on who you play with. This is the quick guide by profile that I use in the shop:

• As a couple / 2 players: Traders & Barbarians, for its specific two-player mode. It is the only one that gives you an experience designed for playing without more people at home.
• Family with children: the base game and, when you want more, Seafarers. It adds excitement (islands and ships) without shooting up the difficulty or the length.
• Group of 5-6 people: what you need is not an expansion, it is the 5-6 player extension (careful, I explain it properly below, because it is not an expansion).
• Group that already masters the base game and wants depth: Cities & Knights, without hesitation. It is the strategic summit of the series.
• Group that gets bored of repeating the map: Traders & Barbarians, for the variety of modules you can alternate.

The 5-6 player extension is not an expansion (read this before buying)

This is the most common buying mistake, and I want to dwell on it. Many people come in looking for "an expansion to play with 6" and that is not what they need. The Catan 5-6 player extension adds no new rules or mechanics: it is simply extra material, more tiles and more cards, so that the base game (or an expansion) can seat 5 or 6 people at the table instead of the standard maximum of 4.

Two important things:

• There is a 5-6 extension for the base game and a specific 5-6 extension for Cities & Knights. They are not interchangeable: each one extends its own game.
• In our catalogue we have the 5-6 player extension for Cities & Knights. To use it you need the base game and the Cities & Knights expansion; it then extends that combination to 6 players.

In short: if you are a big gang and only play the base game, what you want is the base game 5-6 extension. If you already play Cities & Knights and want to seat 6, then the Cities & Knights one is yours. One honest note: with 5 or 6 at the table the game gets longer and the waiting between turns is more noticeable, so save those games for when you have a free afternoon. If you are unsure which one you need, ask before buying, that is what we are here for.

Can the expansions be combined with each other?

Yes, with caveats. Seafarers, Cities & Knights and Traders & Barbarians are compatible with each other and very experienced players stack them to create enormous games: knights defending islands scattered across the sea while you negotiate caravans. It sounds wonderful, and it is... for groups that already know each expansion separately.

The honest warning is this: each layer you add increases playing time and the rules to remember. Combining two expansions is not automatically "twice the fun"; sometimes it is a three-hour game that not everyone feels like enduring. Also, not all combinations weigh the same: adding Seafarers to Traders & Barbarians hardly complicates things, because both are light; stacking Cities & Knights on top of Seafarers, on the other hand, is already a long, dense session best kept for the most veteran group.

My advice on Catan expansion compatibility is simple: master each one separately before mixing them, start by combining the two lightest and build up from there, and do not use more than two at once until you have the hang of it. And keep the rulebooks to hand: when you combine them, the question of which rule takes precedence always comes up.

Catan expansions comparison table

The summary for deciding at a glance. Remember that all of them require the base game.

Expansion	Added complexity	Does it lengthen the game?	Players	Who it suits / who it doesn't
Seafarers	Low	A little	3-4 (5-6 with the base game extension)	Yes: families and groups who want their first expansion. No: anyone looking for a big strategic leap.
Traders & Barbarians	Low / medium (depending on the module)	Varies, you play individual modules	2-4	Yes: couples (2-player mode) and anyone who wants variety. No: anyone looking for a single, compact system.
Cities & Knights	High	Quite a lot	3-4 (5-6 with its extension)	Yes: groups that master the base game. No: beginners or anyone who wants quick games.
Explorers & Pirates	Medium / high	Quite a lot	3-4	Yes: anyone who already has several expansions and wants more sea. No: a first purchase.
5-6 player extension	None (material only)	Yes, because there are more people	Extends to 5-6	Yes: big gangs. It is not an expansion: it adds no new rules.

You will find them all together, with their product pages and up-to-date prices, in the complete Catan collection, within our board games section.

Why buy your Catan at Híper Ocio

We are a family shop in Albox, founded in 1923; we are in the fourth generation and have spent our whole lives selling toys and board games. With Catan, that shows in the advice: we are not going to sell Cities & Knights to someone who has not yet played three games of the base game, because we know it will be too much and the box will end up closed.

• Official Devir point of sale. Original product, in Spanish, with its rulebook and components exactly as they leave the factory.
• Free delivery across Spain from €49.99. Most Catan expansions reach that threshold, so it arrives at your door with no delivery charge anywhere in Spain.
• 3-year legal guarantee. The one set by Spanish law, no more and no less, in case any component arrives defective.
• Physical shop in Albox. We are at Avenida 28 de Febrero s/n; you can drop in, see them on the shelf and ask with no obligation.
• Real advice. If you are torn between two boxes, message us on WhatsApp at 623 04 44 20 and we will tell you honestly which one suits your group.

And if the best recommendation is "for now, stick with the base game and come back for Seafarers later", that is what we will tell you. There is no rush to empty the shelf.

Frequently asked questions

Do I need the base game for the expansions?

Yes, always. No Catan expansion works on its own: they are all built on the resources, dice and cards of the base game. If you are given an expansion without owning the base game, you will not be able to play until you get it.

Which Catan expansion should I start with?

For most groups, Seafarers: it complicates the rules least and widens the map most. If you mostly play as a couple, start with Traders & Barbarians for its 2-player mode. And if you are seasoned players who already master the base game, go straight to Cities & Knights.

Can the expansions be combined with each other?

Yes. Seafarers, Cities & Knights and Traders & Barbarians are compatible and can be stacked, but each one adds time and rules. It is best to master them separately, start by combining the two lightest and not mix more than two at once until you have the hang of it.

Which is the best Catan expansion?

By community recognition, Cities & Knights is the most acclaimed and the "definitive" one for expert players. But "best" depends on your group: as a first purchase or for family play, Seafarers usually works out better.

Which one do I need to play with 5 or 6 players?

Not an expansion, but the 5-6 player extension, which is extra material to increase the number of participants. There is one version for the base game and another for Cities & Knights; in our catalogue we have the 5-6 extension for Cities & Knights. Each one extends its own game, so check carefully which one matches what you already own.

Is there Catan for 2 players?

The base game is designed for 3 to 4, but Traders & Barbarians includes specific rules for 2 players. It is the designed way to enjoy Catan as a couple without it feeling too limited.

How long does a game last?

The base game runs around 60-90 minutes. Seafarers and Traders & Barbarians do not change that time much; Cities & Knights and Explorers & Pirates lengthen it quite a bit because of the added depth. And adding more players with the 5-6 extension also stretches the game.

Can I give an expansion to someone who already has the base game?

It is a great idea, and one of the most appreciated. If that person already plays and enjoys the base game, almost any expansion will delight them. For a safe bet, Seafarers: it suits almost any group and does not make them relearn the game. If you know they are the strategic type and like something to get their teeth into, Cities & Knights. If in doubt, pop into the shop or write to us and we will guide you based on how they play.