Anno 1800 - Lan Multiplayer
Anno 1800 does not offer true offline LAN multiplayer. However, with persistent internet access and proper network configuration, players can enjoy a stable, low-latency multiplayer experience on a local network. The major limitations are the mandatory Ubisoft Connect dependency, susceptibility to desynchronization, and lack of host migration.
For LAN parties focused on Anno 1800, organizers should prioritize a powerful host PC, wired connections, and frequent saving. If offline LAN capability is a strict requirement, earlier Anno titles (e.g., Anno 1404 with its “DirectPlay” LAN mode) or other RTS games remain better choices. Nonetheless, Anno 1800’s cooperative and competitive multiplayer over LAN, when working correctly, provides hundreds of hours of locally networked industrial revolution gameplay.
Appendix – Useful Ports for Anno 1800 (UDP)
Report compiled based on game version 18.x (post-Game of the Year Edition).
Anno 1800 does not have a dedicated "Offline LAN" mode. To play together—even in the same room—all players must be online and connected to Ubisoft Connect. 🌐 Setup Requirements
Licenses: Every player must own a separate copy of the game on their own account.
DLC: To use specific expansions, all players in the session must own them.
Mods: If using mods, every participant must have the exact same version and files installed to prevent crashes. 🕹️ How to Start a Match
Launch: Everyone starts the game and ensures they have a green connection icon (connected to matchmaking).
Host: One player selects Multiplayer → Host New Game from the main menu. Invite: anno 1800 lan multiplayer
Rivalry: To play against each other, click the "+" slots to invite friends from your list.
Co-op: To control the same empire, click the "+" icon directly under your name to add friends to your team (up to 4 per faction).
Launch: Once everyone has accepted the invite and is in the lobby, click Start Game. 💡 Multiplayer Pro-Tips
Blueprint Mode: You cannot speed up time in multiplayer. Use the Blueprint tool to plan layouts while waiting for resources.
Expansion: AI players expand quickly. Scout and claim islands with key fertilities (like Hops or Red Peppers) early to avoid being locked out of progression.
Role Delegation (Co-op): Assign tasks to avoid confusion. One player can focus on Old World logistics while another manages the New World or naval defenses.
Auto-Saves: The game saves for all players. If the host disconnects, the save file can be used to re-host the session later.
While Anno 1800 isn't marketed as a "LAN game," the underlying tech respects your local network beautifully. Once you're in the lobby, the experience is indistinguishable from a wired LAN party.
So gather your friends, assign your roles (who is the potato/beer baron?), and get ready to settle every island before they do. Just remember—ships are faster than apologies. Anno 1800 does not offer true offline LAN multiplayer
Ready to play? Fire up your PCs, mute your Discord (talk to each other face-to-face!), and may the best industrialist win.
Have you tried LAN play on Anno 1800? Did you discover a trick we missed? Let us know in the comments below!
Anno 1800 does support LAN multiplayer, but it requires a bit of clarification. The game does not have a pure, fully offline LAN mode that bypasses Ubisoft Connect entirely. Instead, the "LAN mode" functions as a peer-to-peer connection over your local network while still requiring each player to be logged into Ubisoft Connect (and have the game in their library).
In practice, this means:
This setup eliminates the need for traffic to route through external matchmaking servers during the session—reducing latency and avoiding internet hiccups—but the authentication still requires an online handshake at launch.
| Problem | Likely Cause | Solution |
|---------|--------------|----------|
| Game not visible in lobby | Firewall blocking UDP ports | Allow Anno1800.exe and Ubisoft Connect in Windows Defender / third-party firewall. |
| “Failed to join session” | Different game versions or DLC mismatch | Verify all players update game and disable mods temporarily. |
| Constant desyncs | Mod conflict or one player has corrupted cache | Disable all mods; clear %USERPROFILE%\Documents\Anno 1800\cache. |
| High latency despite being on LAN | PC is using wireless, or router is overloaded | Use Ethernet; reduce other network traffic (e.g., video streaming). |
| Disconnect after 10 minutes | Internet drop on any player’s side | Check stability of each player’s internet – even LAN mode requires online. |
Anno 1800’s LAN mode isn’t the raw, offline, plug-and-play LAN of 1990s Doom or Age of Empires II. It’s a modern hybrid: authenticated peer-to-peer. But once you’re in, the experience is genuinely local—low lag, high stability, and perfect for LAN parties or co-op campaigns with a roommate.
For purists, the requirement of Ubisoft Connect might sting. But for anyone who remembers the joy of yelling across a room of CRT monitors as steamships clash and supply chains crumble, Anno 1800 delivers that magic. Just make sure everyone’s DLC matches and the firewall is tamed.
Final score for LAN implementation: 8/10 – Docked points for online authentication requirement, but otherwise a rock-solid way to build empires together, face to face. Appendix – Useful Ports for Anno 1800 (UDP)
's multiplayer allows for extensive collaboration and competition, supporting up to 16 players
simultaneously. While the game does not feature a dedicated "offline" LAN mode and requires an active internet connection to authenticate via Ubisoft Connect, you can still play with friends on the same local network by hosting a custom private session. Multiplayer Gameplay Modes The game is structured around four factions
(or teams). You can fill these slots with various combinations of human players and AI. Co-op Mode : Up to 4 players can control a single faction
, sharing resources, money, and island management responsibilities. This is ideal for dividing tasks—for example, one player handles production chains while another focuses on diplomacy or naval combat. Competitive (PvP)
: Players or teams of players compete to settle islands and reach specific victory conditions first. Mixed Mode
: You can set up a "4v4v4v4" match with 16 total humans, or play as a co-op team of four against three separate AI opponents. Setting Up a Session Anno 1800 (PC) Co-Op Information - Co-Optimus
To understand the state of LAN play in Anno 1800, one must first understand the game's networking architecture. Unlike older RTS titles (such as Age of Empires II or StarCraft) which utilized true peer-to-peer connections over a local subnet, Anno 1800 relies on a client-server model mediated by Ubisoft Connect (formerly Uplay).
When players initiate a "local" multiplayer session, the game still requires an active internet connection to authenticate with Ubisoft’s central servers. The "host" effectively runs a server instance that other clients connect to via the internet, even if those clients are sitting in the same room.
Key Distinctions: