Catan, inside vanilla Minecraft

The board is an island, your hand is your inventory, the hotbar builds. No mods, no launcher tricks. Open Minecraft Java 26.2 and add this server:

play.catan.online

2 to 4 players per table, computer opponents fill empty seats. Free to play.

How to join

Minecraft Java Edition 26.2. In the launcher (or the Modrinth app) pick game version 26.2 with no loader. Other mods are fine but not needed.
Multiplayer → Add Server → address play.catan.online.
Accept the resource pack when asked. It adds card art, button icons, dice faces and sounds. Saying no also works, you just see plain items.
In the lounge right-click the map to join an open table, or the crafting table to open your own. Pick a seat colour at the bed, add bots if you like, ring the bell to start.

…checking

Nobody has won a game yet. Be the first.

Right-click the dice to roll. Resources land in your inventory.
The hotbar has road, settlement, city, development card, trade and end-turn tools. Legal spots glow.
Trades with other players are chat offers with an [Accept] button. Bank 4:1, harbours 3:1 or 2:1.
Every decision has a clock. Run out and the server makes a sensible move for you. Disconnect and your seat waits.
First to 10 victory points wins. Longest road and largest army count 2 each. Full rules.

Screenshot: the island from a seat

Screenshot: the hotbar and a trade offer

Screenshot: the lounge with tables