supports LAN (Local Area Network) multiplayer, allowing multiple players to play together on the same local network without routing traffic through external game servers (beyond initial authentication). While functional and stable under ideal conditions, the experience is highly dependent on hardware performance, network latency, and player synchronization settings. LAN play eliminates internet routing lag but does not fix the core game's synchronization demands.
Check the box for so friends can join later if they disconnect. Click Host .
If you’re using mods, every player must have the exact same mods installed and enabled in the same load order. Using a Paradox Launcher playset is the easiest way to share these configurations. 2. Setting Up the LAN Lobby
All players start as vassals under the same Emperor or King (for example, counts inside the Holy Roman Empire). Work together to expand the realm's borders, protect your liege from AI rebellions, and vote each other into positions of power on the council. The Shattered World Race ck3 lan multiplayer
Also, be aware of the "Hotjoin Hell" — if a player drops and rejoins the game, transferring the save file can take up to .
For a "deep" dive into stability—especially for long LAN sessions or large groups—consider these expert community recommendations:
Although Paradox has improved their servers, hosting a game on a LAN (Local Area Network) offers several distinct advantages over traditional internet multiplayer: Check the box for so friends can join
Ruling the World Together: A Guide to CK3 LAN Multiplayer Setting up a local area network (LAN) session for Crusader Kings III
Every player should disable all mods in the Paradox Launcher to see if the base game checksum matches.
LAN reduces the "desync" errors that plague the Paradox engine over long distances. However, players still report that CK3's performance is heavily CPU-dependent rather than network-dependent—so make sure everyone is playing on a decent rig to avoid late-game lag. The UI Hurdle: Using a Paradox Launcher playset is the easiest
Reduce the game speed. Running a LAN game at Speed 5 can easily overwhelm slower CPUs or weaker routers. Stick to Speed 3 or 4. Also, ensure no one is downloading files in the background. 5. Best Practices for a Smooth LAN Campaign
Crusader Kings III (CK3) does not have a dedicated "LAN" button in the traditional sense, but you can easily play with others on the same local network by using the standard multiplayer lobby system.